ISRO explained

Indian Space Research Organisation
Native Name:Bhāratīya Aṃtarikṣa Anusaṃdhāna Saṃgaṭhana
Headquarters:Bengaluru, Karnataka
Jurisdiction:Department of Space
Owner:Government of India
Preceding1:INCOSPAR (1962–1969)
Employees:19,247 (as on 1 March 2022)[1]
Leader Title:Chairman
Leader Name:Sreedhara Somanath
Budget: (2024-2025)[2]

Indian Space Research Organisation (ISRO[3]) is India's national space agency. It operates as the principal research and development arm of the Department of Space (DoS), which is directly overseen by the Prime Minister of India, with the Chairman of ISRO also serving as the chief executive of the DoS. ISRO has the world's largest constellation of remote-sensing satellites and operates the GAGAN and IRNSS (NavIC) satellite navigation systems. It has sent three missions to the Moon and one to Mars. ISRO is primarily responsible for space-based operations, space exploration, international space cooperation and the development of related technologies.[4]

ISRO is one of the six government space agencies in the world that possess full launch capabilities, the ability to deploy cryogenic engines, the ability to launch extraterrestrial missions and the ability to operate a large fleet of artificial satellites.[5] ISRO is also one of only four governmental space agencies in the world to have soft landing (unmanned) capabilities.[6]

ISRO was formerly known as the Indian National Committee for Space Research (INCOSPAR). It was set up at the behest of the then-Prime Minister Jawaharlal Nehru at the recommendation of Dr. Vikram Sarabhai in 1962, a prescient scientist. INCOSPAR was renamed ISRO in 1969 and was subsumed into the Department of Atomic Energy (DAE).[7] In 1972, the Government of India set up a Space Commission and the DoS, bringing ISRO under its purview.

The establishment of ISRO had institutionalised space research activities in India. It has since then been managed by the DoS, which also governs various other institutions in India in the domain of astronomy and space technology.[8]

ISRO built India's first satellite, Aryabhata, which was launched by the Soviet space agency Interkosmos in 1975.[9] In 1980, ISRO launched satellite RS-1 onboard SLV-3, making India only the seventh country on the planet to undertake orbital launches.

SLV-3 was followed by ASLV, which was subsequently succeeded by the development of many medium-lift launch vehicles, rocket engines, satellite systems and networks enabling the agency to launch hundreds of domestic and foreign satellites and various deep space missions.

ISRO's programmes have played a significant role in the socio-economic development of India and have supported both civilian and military domains in various aspects including disaster management, telemedicine, navigation and reconnaissance missions. ISRO's spin-off technologies have also undergirded many ground-breaking innovations in India's engineering and medical landscapes.[10]

History

Formative years

Modern space research in India can be traced to the 1920s, when scientist S. K. Mitra conducted a series of experiments sounding the ionosphere through ground-based radio in Kolkata. Later, Indian scientists like C.V. Raman and Meghnad Saha contributed to scientific principles applicable in space sciences. After 1945, important developments were made in coordinated space research in India by two scientists: Vikram Sarabhai, founder of the Physical Research Laboratory at Ahmedabad, and Homi Bhabha, who established the Tata Institute of Fundamental Research in 1945. Initial experiments in space sciences included the study of cosmic radiation, high-altitude and airborne testing, deep underground experimentation at the Kolar mines—one of the deepest mining sites in the world—and studies of the upper atmosphere. These studies were done at research laboratories, universities, and independent locations.

In 1950, the Department of Atomic Energy (DAE) was founded with Bhabha as its secretary. It provided funding for space research throughout India. During this time, tests continued on aspects of meteorology and the Earth's magnetic field, a topic that had been studied in India since the establishment of the Colaba Observatory in 1823. In 1954, the Aryabhatta Research Institute of Observational Sciences (ARIES) was established in the foothills of the Himalayas. The Rangpur Observatory was set up in 1957 at Osmania University, Hyderabad. Space research was further encouraged by the government of India. In 1957, the Soviet Union launched Sputnik 1 and opened up possibilities for the rest of the world to conduct a space launch.

The Indian National Committee for Space Research (INCOSPAR) was set up in 1962 by Prime Minister Jawaharlal Nehru on the suggestion of Dr. Vikram Sarabhai. Initially there was no dedicated ministry for the space programme and all activities of INCOSPAR relating to space technology continued to function within the DAE.[11] IOFS officers were drawn from the Indian Ordnance Factories to harness their knowledge of propellants and advanced light materials used to build rockets.[12] H.G.S. Murthy, an IOFS officer, was appointed the first director of the Thumba Equatorial Rocket Launching Station,[13] where sounding rockets were fired, marking the start of upper atmospheric research in India.[14] An indigenous series of sounding rockets named Rohini was subsequently developed and started undergoing launches from 1967 onwards.[15] Waman Dattatreya Patwardhan, another IOFS officer, developed the propellant for the rockets.

1970s and 1980s

Under the government of Indira Gandhi, INCOSPAR was superseded by ISRO. Later in 1972, a space commission and Department of Space (DoS) were set up to oversee space technology development in India specifically. ISRO was brought under DoS, institutionalising space research in India and forging the Indian space programme into its existing form. India joined the Soviet Interkosmos programme for space cooperation[16] and got its first satellite Aryabhatta in orbit through a Soviet rocket.

Efforts to develop an orbital launch vehicle began after mastering sounding rocket technology. The concept was to develop a launcher capable of providing sufficient velocity for a mass of to enter low Earth orbit. It took 7 years for ISRO to develop Satellite Launch Vehicle capable of putting into a 400km (200miles) orbit. An SLV Launch Pad, ground stations, tracking networks, radars and other communications were set up for a launch campaign. The SLV's first launch in 1979 carried a Rohini technology payload but could not inject the satellite into its desired orbit. It was followed by a successful launch in 1980 carrying a Rohini Series-I satellite, making India the seventh country to reach Earth's orbit after the USSR, the US, France, the UK, China and Japan. RS-1 was the third Indian satellite to reach orbit as Bhaskara had been launched from the USSR in 1979. Efforts to develop a medium-lift launch vehicle capable of putting 600kg (1,300lb) class spacecrafts into 1000km (1,000miles) Sun-synchronous orbit had already begun in 1978.[17] They would later lead to the development of the Polar Satellite Launch Vehicle (PSLV).[18] The SLV-3 later had two more launches before discontinuation in 1983.[19] ISRO's Liquid Propulsion Systems Centre (LPSC) was set up in 1985 and started working on a more powerful engine, Vikas, based upon the French Viking.[20] Two years later, facilities to test liquid-fuelled rocket engines were established and development and testing of various rocket engines thrusters began.[21]

At the same time, another solid-fuelled rocket, the Augmented Satellite Launch Vehicle (ASLV), whose design was based upon SLV-3 was being developed, with technologies to launch satellites into geostationary orbit (GTO). The ASLV had limited success and multiple launch failures; it was soon discontinued.[22] Alongside these developments, communication satellite technologies for the Indian National Satellite System [23] and the Indian Remote Sensing Programme for earth observation satellites[24] were developed and launches from overseas were initiated. The number of satellites eventually grew and the systems were established as among the largest satellite constellations in the world, with multi-band communication, radar imaging, optical imaging and meteorological satellites.[25]

1990s

The arrival of the PSLV in 1990s was a major boost for the Indian space programme. With the exception of its first flight in 1994 and two partial failures later, the PSLV had a streak of more than 50 successful flights. The PSLV enabled India to launch all of its low Earth orbit satellites, small payloads to GTO and hundreds of foreign satellites.[26] Along with the PSLV flights, development of a new rocket, a Geosynchronous Satellite Launch Vehicle (GSLV) was going on. India tried to obtain upper-stage cryogenic engines from Russia's Glavkosmos but was blocked by the US from doing so. As a result, KVD-1 engines were imported from Russia under a new agreement which had limited success[27] and a project to develop indigenous cryogenic technology was launched in 1994, taking two decades to reach fulfillment.[28] A new agreement was signed with Russia for seven KVD-1 cryogenic stages and a ground mock-up stage with no technology transfer, instead of five cryogenic stages along with the technology and design in the earlier agreement.[29] These engines were used for the initial flights and were named GSLV Mk.1.[30] ISRO was under US government sanctions between 6 May 1992 to 6 May 1994.[31] After the United States refused to help India with Global Positioning System (GPS) technology during the Kargil war, ISRO was prompted to develop its own satellite navigation system IRNSS (now NaVIC i.e. Navigation with Indian Constellation) which it is now expanding further.[32]

21st century

In 2003, when China sent humans into space, Prime Minister Atal Bihari Vajpayee urged scientists to develop technologies to land humans on the Moon[33] and programmes for lunar, planetary and crewed missions were started. ISRO launched Chandrayaan-1 in 2008, purportedly the first probe to verify the presence of water on the Moon,[34] and the Mars Orbiter Mission in 2013, the first Asian spacecraft to enter Martian orbit, making India the first country to succeed at this on its first attempt.[35] Subsequently, the cryogenic upper stage for GSLV rocket became operational, making India the sixth country to have full launch capabilities.[36] A new heavier-lift launcher LVM3 was introduced in 2014 for heavier satellites and future human space missions.[37]

On 23 August 2023, India achieved its first soft landing on an extraterrestrial body and became the first nation to successfully land a spacecraft near the lunar south pole with ISRO's Chandrayaan-3, the third Moon mission.[38] Indian moon mission, Chandrayaan-3 (translated as "mooncraft" in English), saw the successful soft landing of its Vikram lander at 6.04pm IST (1234 GMT) near the little-explored region of the Moon in a world's first for any space programme.[39] India then successfully launched its first sun probe, the Aditya-L1, aboard a PSLV on September 2.[40] [41]

Agency logo

ISRO did not have an official logo until 2002. The one adopted consists of an orange arrow shooting upwards attached with two blue coloured satellite panels with the name of ISRO written in two sets of text, orange-coloured Devanagari on the left and blue-coloured English in the Prakrta typeface on the right.[42] [43]

Goals and objectives

As the national space agency of India, ISRO's purpose is the pursuit of all space-based applications such as research, reconnaissance, and communications. It undertakes the design and development of space rockets and satellites, and undertakes explores upper atmosphere and deep space exploration missions. ISRO has also incubated technologies in India's private space sector, boosting its growth.[44]

On the topic of the importance of a space programme to India as a developing nation, Vikram Sarabhai as INSCOPAR chair said in 1969:[45] [46]

The former president of India and chairman of DRDO, A. P. J. Abdul Kalam, said:[47]

India's economic progress has made its space programme more visible and active as the country aims for greater self-reliance in space technology. In 2008, India launched as many as 11satellites, including nine from other countries, and went on to become the first nation to launch 10satellites on onerocket.[48] ISRO has put into operation two major satellite systems: the Indian National Satellite System (INSAT) for communication services, and the Indian Remote Sensing Programme (IRS) satellites for management of natural resources.

Organisation structure and facilities

See also: ISRO facilities. ISRO is managed by the DOS, which itself falls under the authority of the Space Commission and manages the following agencies and institutes:[49] [50] [51]

Research facilities

Facility Location Description
The largest ISRO base is also the main technical centre and the venue for development of the SLV-3, ASLV, and PSLV series. The base supports TERLS and the Rohini Sounding Rocket programme. It is also developing the GSLV series.
The LPSC handles design, development, testing and implementation of liquid propulsion control packages, liquid stages and liquid engines for launch vehicles and satellites. The testing of these systems is largely conducted at IPRC at Mahendragiri. The LPSC, Bengaluru also produces precision transducers.
Solar planetary physics, infrared astronomy, geo-cosmo physics, plasma physics, astrophysics, archaeology, and hydrology are some of the branches of study at this institute.; it also operates the observatory at Udaipur.
The NARL carries out fundamental and applied research in atmospheric and space sciences.[53]
The SAC deals with the various aspects of the practical use of space technology. Among the fields of research at the SAC are geodesy, satellite based telecommunications, surveying, remote sensing, meteorology, environment monitoring etc. The SAC also operates the Delhi Earth Station, which is located in Delhi and is used for demonstration of various SATCOM experiments in addition to normal SATCOM operations.
Providing developmental support to North East by undertaking specific application projects using remote sensing, GIS, satellite communication and conducting space science research.[54]

Construction and launch facilities

Facility Location Description
The venue of eight successful spacecraft projects is also one of the main satellite technology bases of ISRO. The facility serves as a venue for implementing indigenous spacecraft in India. The satellites Aaryabhata, Bhaskara, APPLE, and IRS-1A were built at this site, and the IRS and INSAT satellite series are presently under development here. This centre was formerly known as ISRO Satellite Centre.
Laboratory for Electro-Optics SystemsThe Unit of ISRO responsible for the development of altitude sensors for all satellites. The high precision optics for all cameras and payloads in all ISRO satellites are developed at this laboratory, located at Peenya Industrial Estate, Bengaluru.
With multiple sub-sites the Sriharikota island facility acts as a launching site for India's satellites. The Sriharikota facility is also the main launch base for India's sounding rockets. The centre is also home to India's largest Solid Propellant Space Booster Plant (SPROB) and houses the Static Test and Evaluation Complex (STEX). The Second Vehicle Assembly Building (SVAB) at Sriharikota is being realised as an additional integration facility, with suitable interfacing to a second launch pad.[55] [56]
ThiruvananthapuramTERLS is used to launch sounding rockets.[57]

Tracking and control facilities

Facility Location Description
Indian Deep Space Network (IDSN) This network receives, processes, archives and distributes the spacecraft health data and payload data in real-time. It can track and monitor satellites up to very large distances, even beyond the Moon.[58]
The NRSC applies remote sensing to manage natural resources and study aerial surveying. With centres at Balanagar and Shadnagar it also has training facilities at Dehradun acting as the Indian Institute of Remote Sensing.
Bengaluru (headquarters) and a number of ground stations throughout India and the world. Software development, ground operations, Tracking Telemetry and Command (TTC), and support is provided by this institution. ISTRAC has Tracking stations throughout the country and all over the world in Port Louis (Mauritius), Bearslake (Russia), Biak (Indonesia) and Brunei.[59]
BhopalGeostationary satellite orbit raising, payload testing, and in-orbit operations are performed at this facility. The MCF has Earth stations and the Satellite Control Centre (SCC) for controlling satellites. A second MCF-like facility named 'MCF-B' is being constructed at Bhopal.
Space Situational Awareness Control CentrePeenya, BengaluruA network of telescopes and radars are being set up under the Directorate of Space Situational Awareness and Management to monitor space debris and to safeguard space-based assets. The new facility will end ISRO's dependence on NORAD. The sophisticated multi-object tracking radar installed in Nellore, a radar in Northeast India and telescopes in Thiruvananthapuram, Mount Abu and North India will be part of this network.[60] [61]

Human resource development

Facility Location Description
Indian Institute of Remote Sensing (IIRS) The Indian Institute of Remote Sensing (IIRS) is a premier training and educational institute set up for developing trained professionals (P.G. and PhD level) in the field of remote sensing, geoinformatics and GPS technology for natural resources, environmental and disaster management. IIRS is also executing many R&D projects on remote sensing and GIS for societal applications. IIRS also runs various outreach programmes (Live & Interactive and e-learning) to build trained skilled human resources in the field of remote sensing and geospatial technologies.[62]
Indian Institute of Space Science and Technology (IIST) The institute offers undergraduate and graduate courses in Aerospace Engineering, Electronics and Communication Engineering (Avionics), and Engineering Physics. The students of the first threebatches of IIST were inducted into different ISRO centres.[63]
Development and Educational Communication UnitThe centre works for education, research, and training, mainly in conjunction with the INSAT programme. The main activities carried out at DECU include GRAMSAT and EDUSAT projects. The Training and Development Communication Channel (TDCC) also falls under the operational control of the DECU.
Space Technology Incubation Centres (S-TICs) at: The S-TICs opened at premier technical universities in India to promote startups to build applications and products in tandem with the industry and would be used for future space missions. The S-TIC will bring the industry, academia and ISRO under one umbrella to contribute towards research and development (R&D) initiatives relevant to the Indian Space Programme.
Space Innovation Centre at: Burla, SambalpurIn line with its ongoing effort to promote R&D in space technology through industry as well as academia, ISRO in collaboration with Veer Surendra Sai University of Technology (VSSUT), Burla, Sambalpur, Odisha, has set up Veer Surendra Sai Space Innovation Centre (VSSSIC) within its campus at Sambalpur. The objective of its Space Innovation Research Lab is to promote and encourage the students in research and development in the area of space science and technology at VSSUT and other institutes within this region.[66] [67]
Regional Academy Centre for Space (RAC-S) at: Varanasi, Guwahati, Kurukshetra, Jaipur, Mangaluru, PatnaAll these centres are set up in tier-2 cities to create awareness, strengthen academic collaboration and act as incubators for space technology, space science and space applications. The activities of RAC-S will maximise the use of research potential, infrastructure, expertise, experience and facilitate capacity building.

Antrix Corporation Limited (Commercial Wing)

See main article: Antrix Corporation. Set up as the marketing arm of ISRO, Antrix's job is to promote products, services and technology developed by ISRO.[69] [70]

NewSpace India Limited (Commercial Wing)

See main article: NewSpace India Limited. Set up for marketing spin-off technologies, tech transfers through industry interface and scale up industry participation in the space programmes.[71]

Space Technology Incubation Centre

ISRO has opened Space Technology Incubation Centres (S-TIC) at premier technical universities in India which will incubate startups to build applications and products in tandem with the industry and for use in future space missions. The S-TIC will bring the industry, academia and ISRO under one umbrella to contribute towards research and development (R&D) initiatives relevant to the Indian Space Programme. S-TICs are at the National Institute of Technology, Agartala serving for east region, National Institute of Technology, Jalandhar for the north region, and the National Institute of Technology, Tiruchirappalli for the south region of India.[72]

Advanced Space Research Group

Similar to NASA's CalTech-operated Jet Propulsion Laboratory, ISRO and the Indian Institute of Space Science and Technology (IIST) implemented a joint working framework in 2021, wherein ISRO will approve all short-, medium- and long-term space research projects of common interest between the two. In return, an Advanced Space Research Group (ASRG) formed at IIST under the guidance of the EOC will have full access to ISRO facilities. This was done with the aim of "transforming" the IIST into a premier space research and engineering institute with the capability of leading future space exploration missions for ISRO.[73] [74]

Directorate of Space Situational Awareness and Management

To reduce dependency on North American Aerospace Defense Command (NORAD) for space situational awareness and protect the civilian and military assets, ISRO is setting up telescopes and radars in four locations to cover each direction. Leh, Mount Abu and Ponmudi were selected to station the telescopes and radars that will cover North, West and South of Indian territory. The last one will be in Northeast India to cover the entire eastern region. Satish Dhawan Space Centre at Sriharikota already supports Multi-Object Tracking Radar (MOTR).[75] All the telescopes and radars will come under Directorate of Space Situational Awareness and Management (DSSAM) in Bengaluru. It will collect tracking data on inactive satellites and will also perform research on active debris removal, space debris modelling and mitigation.[76]

For early warning, ISRO began a ₹400 crore (4 billion; US$53 million) project called Network for Space Object Tracking and Analysis (NETRA). It will help the country track atmospheric entry, intercontinental ballistic missile (ICBM), anti-satellite weapon and other space-based attacks. All the radars and telescopes will be connected through NETRA. The system will support remote and scheduled operations. NETRA will follow the Inter-Agency Space Debris Coordination Committee (IASDCC) and United Nations Office for Outer Space Affairs (UNOSA) guidelines. The objective of NETRA is to track objects at a distance of 36000km (22,000miles) in GTO.[77]

India signed a memorandum of understanding on the Space Situational Awareness Data Sharing Pact with the US in April 2022.[78] [79] It will enable Department of Space to collaborate with the Combined Space Operation Center (CSpOC) to protect the space-based assets of both nations from natural and man-made threats.[80] On 11 July 2022, ISRO System for Safe and Sustainable Space Operations Management (IS4OM) at Space Situational Awareness Control Centre, in Peenya was inaugurated by Jitender Singh. It will help provide information on on-orbit collision, fragmentation, atmospheric re-entry risk, space-based strategic information, hazardous asteroids, and space weather forecast. IS4OM will safeguard all the operational space assets, identify and monitor other operational spacecraft with close approaches which have overpasses over Indian subcontinent and those which conduct intentional manoeuvres with suspicious motives or seek re-entry within South Asia.[81]

ISRO System for Safe and Sustainable Space Operations Management

On 7 March 2023, ISRO System for Safe and Sustainable Space Operations Management (IS4OM) conducted successful controlled re-entry of decommissioned satellite Megha-Tropiques after firing four on-board 11 Newton thrusters for 20 minutes each. A series of 20 manoeuvres were performed since August 2022 by spending 120 kg fuel. The final telemetry data confirmed disintegtration over Pacific Ocean. It was part of a compliance effort following international guidelines on space debris mitigation.[82]

Speaking at the 42nd annual meeting of the Inter-Agency Space Debris Coordination Committee (IADC) in Bengaluru, S. Somanath stated that the long-term goal is for all Indian space actors—both governmental and non-governmental—to accomplish debris-free space missions by 2030.[83]

Other facilities

General satellite programmes

See also: List of Indian satellites. Since the launch of Aryabhata in 1975, a number of satellite series and constellations have been deployed by Indian and foreign launchers. At present, ISRO operates one of the largest constellations of active communication and earth imaging satellites for military and civilian uses.

The IRS series

See main article: Indian Remote Sensing satellite. The Indian Remote Sensing satellites (IRS) are India's earth observation satellites. They are the largest collection of remote sensing satellites for civilian use in operation today, providing remote sensing services. All the satellites are placed in polar Sun-synchronous orbit (except GISATs) and provide data in a variety of spatial, spectral and temporal resolutions to enable several programs to be undertaken relevant to national development. The initial versions are composed of the 1 (A, B, C, D) nomenclature while the later versions were divided into sub-classes named based on their functioning and uses including Oceansat, Cartosat, HySIS, EMISAT and ResourceSat etc. Their names were unified under the prefix "EOS" regardless of functioning in 2020.[84] They support a wide range of applications including optical, radar and electronic reconnaissance for Indian agencies, city planning, oceanography and environmental studies.

The INSAT series

See main article: Indian National Satellite System. The Indian National Satellite System (INSAT) is the country's telecommunication system. It is a series of multipurpose geostationary satellites built and launched by ISRO to satisfy the telecommunications, broadcasting, meteorology and search-and-rescue needs. Since the introduction of the first one in 1983, INSAT has become the largest domestic communication system in the Asia-Pacific Region. It is a joint venture of DOS, the Department of Telecommunications, India Meteorological Department, All India Radio and Doordarshan. The overall coordination and management of INSAT system rests with the Secretary-level INSAT Coordination Committee. The nomenclature of the series was changed to "GSAT" from "INSAT", then further changed to "CMS" from 2020 onwards.[85] These satellites have been used by the Indian Armed Forces as well.[86] [87] GSAT-9 or "SAARC Satellite" provides communication services for India's smaller neighbors.[88]

Gagan Satellite Navigation System

See main article: GPS-aided geo-augmented navigation. The Ministry of Civil Aviation has decided to implement an indigenous Satellite-Based Regional GPS Augmentation System also known as Space-Based Augmentation System (SBAS) as part of the Satellite-Based Communications, Navigation, Surveillance and Air Traffic Management plan for civil aviation. The Indian SBAS system has been given the acronym GAGAN – GPS Aided GEO Augmented Navigation. A national plan for satellite navigation including implementation of a Technology Demonstration System (TDS) over Indian airspace as a proof of concept has been prepared jointly by Airports Authority of India and ISRO. The TDS was completed during 2007 with the installation of eight Indian Reference Stations at different airports linked to the Master Control Centre located near Bengaluru.[89]

Navigation with Indian Constellation (NavIC)

See main article: Indian Regional Navigation Satellite System. IRNSS with an operational name NavIC is an independent regional navigation satellite system developed by India. It is designed to provide accurate position information service to users in India as well as the region extending up to from its borders, which is its primary service area. IRNSS provides two types of services, namely, Standard Positioning Service (SPS) and Restricted Service (RS), providing a position accuracy of better than in the primary service area.[90]

Other satellites

Kalpana-1 (MetSat-1) was ISRO's first dedicated meteorological satellite.[91] [92] Indo-French satellite SARAL on 25 February 2013. SARAL (or "Satellite with ARgos and AltiKa") is a cooperative altimetry technology mission, used for monitoring the oceans' surface and sea levels. AltiKa measures ocean surface topography with an accuracy of, compared to on average using altimeters, and with a spatial resolution of .[93] [94]

Launch vehicles

During the 1960s and 1970s, India initiated its own launch vehicles owing to geopolitical and economic considerations. In the 1960s–1970s, the country developed a sounding rocket, and by the 1980s, research had yielded the Satellite Launch Vehicle-3 and the more advanced Augmented Satellite Launch Vehicle (ASLV), complete with operational supporting infrastructure.

Satellite Launch Vehicle

See main article: Satellite Launch Vehicle. The Satellite Launch Vehicle (known as SLV-3) was the first space rocket to be developed by India. The initial launch in 1979 was a failure followed by a successful launch in 1980 making India the sixth country in world with orbital launch capability. The development of bigger rockets began afterwards.

Augmented Satellite Launch Vehicle

See main article: Augmented Satellite Launch Vehicle.

Augmented or Advanced Satellite Launch Vehicle (ASLV) was another small launch vehicle released in 1980s to develop technologies required to place satellites into geostationary orbit. ISRO did not have adequate funds to develop ASLV and PSLV at once. Since ASLV suffered repeated failures, it was dropped in favour of a new project.[95]

Polar Satellite Launch Vehicle

See main article: Polar Satellite Launch Vehicle. Polar Satellite Launch Vehicle or PSLV is the first medium-lift launch vehicle from India which enabled India to launch all its remote-sensing satellites into Sun-synchronous orbit. PSLV had a failure in its maiden launch in 1993. Besides two other partial failures, PSLV has become the primary workhorse for ISRO with more than 50 launches placing hundreds of Indian and foreign satellites into orbit.

Decade-wise summary of PSLV launches:

DecadeSuccessfulPartial successFailureTotal
1990s3115
2000s110011
2010s330134
2020s100010
Total571260

Geosynchronous Satellite Launch Vehicle

See main article: Geosynchronous Satellite Launch Vehicle. Geosynchronous Satellite Launch Vehicle was envisaged in 1990s to transfer significant payloads to geostationary orbit. ISRO initially had a great problem realising GSLV as the development of CE-7.5 in India took a decade. The US had blocked India from obtaining cryogenic technology from Russia, leading India to develop its own cryogenic engines.

Decade-wise summary of GSLV Launches:

DecadeSuccessfulPartial successFailureTotal
2000s2215
2010s6028
2020s2013
Total102416

Launch Vehicle Mark-3

See main article: LVM3. Launch Vehicle Mark-3 (LVM3), previously known as GSLV Mk III, is the heaviest rocket in operational service with ISRO. Equipped with a more powerful cryogenic engine and boosters than GSLV, it has significantly higher payload capacity and allows India to launch all its communication satellites.[96] LVM3 is expected to carry India's first crewed mission to space[97] and will be the testbed for SCE-200 engine which will power India's heavy-lift rockets in the future.[98]

Decade-wise summary of LVM3 launches:

DecadeSuccessfulPartial successFailureTotal
2010s4004[99]
2020s3003[100]
Total7007

Small Satellite Launch Vehicle

See main article: Small Satellite Launch Vehicle. The Small Satellite Launch Vehicle (SSLV) is a small-lift launch vehicle developed by the ISRO with payload capacity to deliver to low Earth orbit or to Sun-synchronous orbit [101] for launching small satellites, with the capability to support multiple orbital drop-offs.[102] [103] [104]

Decade-wise summary of SSLV launches:

Human Spaceflight Programme

See main article: Indian Human Spaceflight Programme, Gaganyaan and List of Indian astronauts. The first proposal to send humans into space was discussed by ISRO in 2006, leading to work on the required infrastructure and spacecraft.[105] [106] The trials for crewed space missions began in 2007 with the 600kg (1,300lb) Space Capsule Recovery Experiment (SRE), launched using the Polar Satellite Launch Vehicle (PSLV) rocket, and safely returned to earth 12 days later.[107]

In 2009, the Indian Space Research Organisation proposed a budget of for its human spaceflight programme. An unmanned demonstration flight was expected after seven years from the final approval and a crewed mission was to be launched after seven years of funding.[108] A crewed mission initially was not a priority and left on the backburner for several years.[109] A space capsule recovery experiment in 2014[110] [111] and a pad abort test in 2018[112] were followed by Prime Minister Narendra Modi's announcement in his 2018 Independence Day address that India will send astronauts into space by 2022 on the new Gaganyaan spacecraft.[113] To date, ISRO has developed most of the technologies needed, such as the crew module and crew escape system, space food, and life support systems. The project would cost less than 100 billion (US$1.3 billion) and would include sending two or three Indians to space, at an altitude of, for at least seven days, using a GSLV Mk-III launch vehicle.[114] [115]

Astronaut training and other facilities

The newly established Human Space Flight Centre (HSFC) will coordinate the IHSF campaign.[116] ISRO will set up an astronaut training centre in Bengaluru to prepare personnel for flights in the crewed vehicle. It will use simulation facilities to train the selected astronauts in rescue and recovery operations and survival in microgravity, and will undertake studies of the radiation environment of space. ISRO had to build centrifuges to prepare astronauts for the acceleration phase of the launch. Existing launch facilities at Satish Dhawan Space Centre will have to be upgraded for the Indian human spaceflight campaign.[117] Human Space Flight Centre and Glavcosmos signed an agreement on 1 July 2019 for the selection, support, medical examination and space training of Indian astronauts.[118] An ISRO Technical Liaison Unit (ITLU) was to be set up in Moscow to facilitate the development of some key technologies and establishment of special facilities which are essential to support life in space.[119] Four Indian Air Force personnel finished training at Yuri Gagarin Cosmonaut Training Center in March 2021.[120]

Crewed spacecraft

See main article: Gaganyaan. ISRO is working towards an orbital crewed spacecraft that can operate for seven days in low Earth orbit. The spacecraft, called Gaganyaan, will be the basis of the Indian Human Spaceflight Programme. The spacecraft is being developed to carry up to three people, and a planned upgraded version will be equipped with a rendezvous and docking capability. In its first crewed mission, ISRO's largely autonomous 3t spacecraft will orbit the Earth at altitude for up to seven days with a two-person crew on board. A source in April 2023 suggested that ISRO was aiming for a 2025 launch.[121]

Space station

See main article: Bharatiya Antariksha Station. India plans to build a space station as a follow-up programme to Gaganyaan. ISRO chairman K. Sivan has said that India will not join the International Space Station programme and will instead build a 20t space station on its own.[122] [123] It is expected to be placed in a low Earth orbit at altitude and be capable of harbouring three humans for 1520 days. The rough time-frame is five to seven years after completion of the Gaganyaan project.[124] [125] "Giving out broad contours of the planned space station, Dr. Sivan said it has been envisaged to weigh 20 tonnes and will be placed in an orbit of 400 km above earth where astronauts can stay for 15-20 days. The time frame is 5-7 years after Gaganyaan," he stated.[126]

As per S. Somanath, the Phase1 will be ready by 2028 and the entire space station will be completed by 2035. The space station will be an international platform for collaborative research on future interplanetary missions, microgravity studies, space biology, medicine and research.

Planetary sciences and astronomy

ISRO and Tata Institute of Fundamental Research have operated a balloon launch base at Hyderabad since 1967. Its proximity to the geo-magnetic equator,[127] where both primary and secondary cosmic ray fluxes are low, makes it an ideal location to study diffuse cosmic X-ray background.[128]

ISRO played a role in the discovery of three species of bacteria in the upper stratosphere at an altitude between . The bacteria, highly resistant to ultra-violet radiation, are not found elsewhere on Earth, leading to speculation on whether they are extraterrestrial in origin.[129] They are considered extremophiles, and named as Bacillus isronensis in recognition of ISRO's contribution in the balloon experiments, which led to its discovery, Bacillus aryabhata after India's celebrated ancient astronomer Aryabhata and Janibacter hoylei after the distinguished astrophysicist Fred Hoyle.[130]

Astrosat

See main article: Astrosat. Launched in 2015, Astrosat is India's first dedicated multi-wavelength space observatory. Its observation study includes active galactic nuclei, hot white dwarfs, pulsations of pulsars, binary star systems, and supermassive black holes located at the centre of the galaxy.[131]

XPoSat

See main article: XPoSat. The X-ray Polarimeter Satellite (XPoSat) is a satellite for studying polarisation.[132] [133] The spacecraft carries the Polarimeter Instrument in X-rays (POLIX) payload which will study the degree and angle of polarisation of bright astronomical X-ray sources in the energy range 5–30 keV.[134] It launched on 1 January 2024 on a PSLV-DL rocket,[135] and it has an expected operational lifespan of at least five years.[133] [136]

Extraterrestrial exploration

Lunar exploration

See main article: Chandrayaan programme. Chandryaan are India's series of lunar exploration spacecraft. The initial mission included an orbiter and controlled impact probe while later missions include landers, rovers and sampling missions.[137]

Chandrayaan-1

See main article: Chandrayaan-1. Chandrayaan-1 was India's first mission to the Moon. The robotic lunar exploration mission included a lunar orbiter and an impactor called the Moon Impact Probe. ISRO launched it using a modified version of the PSLV on 22 October 2008 from Satish Dhawan Space Centre. It entered lunar orbit on 8 November 2008, carrying high-resolution remote sensing equipment for visible, near infrared, and soft and hard X-ray frequencies. During its 312-day operational period (two years were planned), it surveyed the lunar surface to produce a complete map of its chemical characteristics and three-dimensional topography. The polar regions were of special interest, as they had possible ice deposits. Chandrayaan-1 carried 11 instruments: five Indian and six from foreign institutes and space agencies (including NASA, ESA, the Bulgarian Academy of Sciences, Brown University and other European and North American institutions and companies), which were carried for free. The mission team was awarded the American Institute of Aeronautics and Astronautics SPACE 2009 award,[138] the International Lunar Exploration Working Group's International Co-operation award in 2008,[139] and the National Space Society's 2009 Space Pioneer Award in the science and engineering category.[140] [141]

Chandrayaan-2

See main article: Chandrayaan-2. Chandrayaan-2, the second mission to the Moon, which included an orbiter, a lander and a rover. It was launched on a Geosynchronous Satellite Launch Vehicle Mark III (GSLV Mk III) on 22 July 2019, consisting of a lunar orbiter, the Vikram lander, and the Pragyan lunar rover, all developed in India.[142] [143] It was the first mission meant to explore the little-explored lunar south pole region.[144] The objective of the Chandrayaan-2 mission was to land a robotic rover to conduct various studies on the lunar surface.[145]

The Vikram lander, carrying the Pragyan rover, was scheduled to land on the near side of the Moon, in the south polar region at a latitude of about 70° S at approximately 1:50 am(IST) on 7 September 2019. However, the lander deviated from its intended trajectory starting from an altitude of, and telemetry was lost seconds before touchdown was expected.[146] A review board concluded that the crash-landing was caused by a software glitch.[147] The lunar orbiter was efficiently positioned in an optimal lunar orbit, extending its expected service time from one year to seven.[148] It was planned that there will be another attempt to soft-land on the Moon in 2023, without an orbiter.[149]

Chandrayaan-3

See main article: Chandrayaan-3. Chandryaan-3 is India's second attempt to soft-land on the Moon after the partial failure of Chandrayaan-2. The mission will only include a lander-rover set and will communicate with the orbiter from the previous mission.

On 23 August 2023, ISRO became the first space agency to successfully land a spacecraft on the lunar south pole region, and only the fourth space agency ever to land on the Moon.[150]

Mars exploration

See main article: Indian Mars exploration missions.

Mars Orbiter Mission (MOM) or (Mangalyaan-1)

See main article: Mars Orbiter Mission. The Mars Orbiter Mission (MOM), informally known as Mangalyaan (eng: ''MarsCraft'' ) was launched into Earth orbit on 5 November 2013 by the Indian Space Research Organisation (ISRO) and has entered Mars orbit on 24 September 2014.[151] India thus became the first country to have a space probe enter Mars orbit on its first attempt. It was completed at a record low cost of $74 million.[152]

MOM was placed into Mars orbit on 24 September 2014. The spacecraft had a launch mass of, with of five scientific instruments as payload.[153] [154]

The National Space Society awarded the Mars Orbiter Mission team the 2015 Space Pioneer Award in the science and engineering category.[155] [156]

Mars and Moon analogue research station

Researchers from the Birbal Sahni Institute of Palaeosciences (BSIP) and Indian Institute of Science (IISc) have determined that Ladakh is the best site for India's first Mars and Moon analogue research station. The study project is being conducted by BSIP's Binita Phartiyal, IISc's Aloke Kumar who pioneered the idea of building space-bricks from biologically solidified lunar and martian regolith, and Gaganyaan astronaut Shubhanshu Shukla. An analog research station is a location where plans and exercises intended for the Moon and Mars are made. The projected research station would be used for geological and astrobiological research, human studies, crew training, advancing Technology Readiness Levels (TRL), testing space technologies, and engineering integration.[157]

Solar probes

Aditya-L1

See main article: Aditya-L1.

On 2 September 2023, ISRO launched the Aditya-L1 mission to study the solar corona.[158] [159] [160] It is the first Indian space-based solar coronagraph to study the corona in visible and near-infrared bands. The main objective of the mission is to study coronal mass ejections (CMEs), their properties (the structure and evolution of their magnetic fields for example), and consequently constrain parameters that affect space weather.[161] On 6 January 2024, Aditya-L1 spacecraft, India's first solar mission, has successfully entered its final orbit around the first Sun-Earth Lagrangian point (L1), approximately 1.5 million kilometers from Earth.[162]

Future projects

ISRO is developing and operationalising more powerful and less pollutive rocket engines so it can eventually develop much heavier rockets. It also plans km above earth where astronauts can stay for 15–20 days. The time frame is 5–7 years after Gaganyaan, he stated.[126] to develop electric and nuclear propulsion for satellites and spacecraft to reduce their weight and extend their service lives.[163] Long-term plans may include crewed landings on Moon and other planets as well.[164]

Engines and launch vehicles

Semi-cryogenic engine

See main article: SCE-200. SCE-200 is a rocket-grade kerosene (dubbed "ISROsene") and liquid oxygen (LOX)-based semi-cryogenic rocket engine inspired by RD-120. The engine will be less polluting and far more powerful. When combined with the LVM3, it will boost its payload capacity; it will be clustered in future to power India's heavy rockets.

Methalox engineReusable methane and LOX-based engines are under development. Methane is less pollutive, leaves no residue and hence the engine needs very little refurbishment. The LPSC began cold flow tests of engine prototypes in 2020.
Modular heavy rockets

See main article: Next Generation Launch Vehicle. ISRO is studying heavy (HLV) and super-heavy lift launch vehicles (SHLV). Modular launchers are being designed, with interchangeable parts, to reduce production time. A 10t capacity HLV and an SHLV capable of delivering 50t100t into orbit have been mentioned in statements and presentations from ISRO officials.[165] [166]

The agency intends to develop a launcher in the 2020s which can carry nearly to geostationary transfer orbit, nearly four times the capacity of the existing LVM3.[167] A rocket family of five medium to heavy-lift class modular rockets described as "Next Generation Launch Vehicle or NGLV"[168] (initially planned as Unified Modular Launch Vehicle or Unified Launch Vehicle) are being planned which will share parts and will replace ISRO's existing PSLV, GSLV and LVM3 rockets completely. The rocket family will be powered by SCE-200 cryogenic engine and will have a capacity of lifting from to to geostationary transfer orbit.[169]

Reusable launch vehicles

See main article: RLV Technology Demonstration Programme. There have been two reusable launcher projects ongoing at ISRO. One is the ADMIRE test vehicle, conceived as a VTVL system and another is RLV-TD programme, being run to develop an autonomous spacecraft which will be launched vertically but land like a plane.[170]

To realise a fully re-usable two-stage-to-orbit (TSTO) launch vehicle, a series of technology demonstration missions have been conceived. For this purpose, the winged Reusable Launch Vehicle Technology Demonstrator (RLV-TD) has been configured. The RLV-TD acts as a flying testbed to evaluate various technologies such as hypersonic flight, autonomous landing, powered cruise flight, and hypersonic flight using air-breathing propulsion. First in the series of demonstration trials was the Hypersonic Flight Experiment (HEX). ISRO launched the prototype's test flight, RLV-TD, from the Sriharikota spaceport in February 2016. It weighs around and flew up to a height of .[171] HEX was completed five months later. A scaled-up version of it could serve as fly-back booster stage for the winged TSTO concept.[172] HEX will be followed by a landing experiment (LEX) and return flight experiment (REX).[173]

Spacecraft propulsion and power

Electric thrusters

See main article: Spacecraft electric propulsion. India has been working on replacing conventional chemical propulsion with Hall-effect and plasma thrusters which would make spacecraft lighter. GSAT-4 was the first Indian spacecraft to carry electric thrusters, but it failed to reach orbit.[174] GSAT-9 launched later in 2017, had xenon-based electric propulsion system for in-orbit functions of the spacecraft. GSAT-20 is expected to be the first fully electric satellite from India.[175] [176]

Alpha source thermoelectric propulsion technology

See main article: Radioisotope thermoelectric generator. Radioisotope thermoelectric generator (RTG), also called alpha source thermoelectric technology by ISRO, is a type of atomic battery which uses nuclear decay heat from radioactive material to power the spacecraft.[177] In January 2021, the U R Rao Satellite Centre issued an Expression of Interest (EoI) for design and development of a 100-watt RTG. RTGs ensure much longer spacecraft life and have less mass than solar panels on satellites. Development of RTGs will allow ISRO to undertake long-duration deep space missions to the outer planets.[178]

Radioisotope heater unit

See main article: Radioisotope heater unit.

ISRO included two radioisotope heater units developed by the Department of Atomic Energy (DAE) in the propulsion module of Chandrayaan-3 on a trial basis which worked flawlessly.[179]

Nuclear propulsion

See main article: Nuclear propulsion.

ISRO has plans for collaboration with Department of Atomic Energy to power future space missions using nuclear propulsion technology.

Quantum technology

Satellite-based quantum communication

At the Indian Mobile Congress (IMC) 2023, ISRO presented its satellite-based quantum communication technology. It's called quantum key distribution (QKD) technology. According to ISRO, it is creating technologies to thwart quantum computers, which have the ability to readily breach the current generation of encrypted secure communication. A significant milestone for unconditionally secured satellite data communication was reached in September 2023 when ISRO demonstrated free-space quantum communication across a 300-meter distance, including live video conferencing using quantum-key encrypted signals.[180]

Extraterrestrial probes

Destination Craft name Launch vehicle Year
LUPEXH32026[181]
Chandrayaan-4PSLV,LVM32028
Venus Orbiter MissionGSLV2028-31[182]
Mars Orbiter Mission 2
(Mangalyaan-2) 		LVM32026
Lunar exploration

See main article: Lunar Polar Exploration Mission. The Lunar Polar Exploration mission (LUPEX) is a planned robotic lunar mission concept by Indian Space Research Organisation (ISRO) and Japan Aerospace Exploration Agency (JAXA) that would send a lunar rover and lander to explore the south pole region of the Moon no earlier than 2026. JAXA is likely to provide the under-development H3 launch vehicle and the rover, while ISRO would be responsible for the lander.[183]

Crewed Lunar Landing

ISRO aims to put an astronaut on the lunar surface by 2040.[184]

Mars exploration

See main article: Mars Orbiter Mission 2. The next Mars mission, Mars Orbiter Mission 2 or Mangalyaan 2, has been proposed for launch in 2024.[185] The newer spacecraft will be significantly heavier and better equipped than its predecessor; it will only have an orbiter.[186]

Venus exploration

See main article: Venus Orbiter Mission. ISRO is considering an orbiter mission to Venus called Venus Orbiter Mission, that could launch as early as 2023 to study the planet's atmosphere.[187] Some funds for preliminary studies were allocated in the 2017–18 Indian budget under Space Sciences;[188] [189] [190] solicitations for potential instruments were requested in 2017[191] and 2018. A mission to Venus is scheduled for 2025 that will include a payload instrument called Venus Infrared Atmospheric Gases Linker (VIRAL) which has been co-developed with the Laboratoire atmosphères, milieux, observations spatiales (LATMOS) under French National Centre for Scientific Research (CNRS) and Roscosmos.[192]

Asteroids and outer solar systemConceptual studies are underway for spacecraft destined for the asteroids and Jupiter, as well, in the long term. The ideal launch window to send a spacecraft to Jupiter occurs every 33 months. If the mission to Jupiter is launched, a flyby of Venus would be required.[193] Development of RTEG power might allow the agency to further undertake deeper space missions to the other outer planets.[194]

Space telescopes and observatories

AstroSat-2

See main article: AstroSat-2. AstroSat-2 is the successor to the AstroSat mission.[195]

ExoworldsExoworlds is a joint proposal by ISRO, IIST and the University of Cambridge for a space telescope dedicated for atmospheric studies of exoplanets, planned for 2025.[196] [197]

Forthcoming satellites

Satellite nameLaunch vehicleYearPurposeNotes
GSAT-20Falcon 92024 Communications
GISAT 2GSLV2024Earth observationGeospatial imagery to facilitate continuous observation of Indian sub-continent, quick monitoring of natural hazards and disaster.[198]
IDRSSGSLV2024 Data relay and satellite tracking constellationFacilitates continuous real-time communication between Low Earth orbit bound spacecraft to the ground station as well as inter-satellite communication. Such a satellite in geostationary orbit can track a low altitude spacecraft up to almost half of its orbit.[199]
DISHAPSLV2024–25[200] AeronomyDisturbed and quite-type Ionosphere System at High Altitude (DISHA) satellite constellation with two satellites in LEO.
AHySIS-2PSLV2024Earth observationFollow-up to HySIS hyperspectral Earth imaging satellite.[201]
NISARGSLV2025[202] Earth observationNASA-ISRO Synthetic Aperture Radar (NISAR) is a joint project between NASA and ISRO to co-develop and launch a dual frequency synthetic aperture radar satellite to be used for remote sensing. It is notable for being the first dual band radar imaging satellite.[203]
Geospatial intelligence satellites

A family of 50 artificial intelligence based satellites will be launched by ISRO between 2024 and 2028 to collect geospatial intelligence (GEOINT) in different orbits to track military movements and photograph areas of interest. For the sake of national security, the satellites will monitor the neighboring areas and the international border. It will use thermal, optical, synthetic aperture radar (SAR), among other technologies, for GEOINT application. Each satellite using artificial intelligence will have the ability to communicate and collaborate with the remaining satellites in space at different orbits to monitor the environment for intelligence gathering operations.[204] [205]

Upcoming launch facilities

Kulasekharapatnam Spaceport

See main article: Kulasekharapatnam Spaceport. Kulasekharapatnam Spaceport is an under-development spaceport in Thoothukudi district of Tamil Nadu. After completion, it would serve as the second launch facility of ISRO. This spaceport will mainly be used by ISRO for launching small payloads.[206]

Applications

Telecommunication

India uses its satellite communication network – one of the largest in the world – for applications such as land management, water resources management, natural disaster forecasting, radio networking, weather forecasting, meteorological imaging and computer communication. Business, administrative services, and schemes such as the National Informatics Centre (NIC) are direct beneficiaries of applied satellite technology.

Military

The Integrated Space Cell, under the Integrated Defence Staff headquarters of the Ministry of Defence,[207] has been set up to utilise more effectively the country's space-based assets for military purposes and to look into threats to these assets.[208] [209] This command will leverage space technology including satellites. Unlike an aerospace command, where the Air Force controls most of its activities, the Integrated Space Cell envisages cooperation and coordination between the three services as well as civilian agencies dealing with space.

With 14 satellites, including GSAT-7A for exclusive military use and the rest as dual-use satellites, India has the fourth largest number of satellites active in the sky which includes satellites for the exclusive use of its air force (IAF) and navy.[210] GSAT-7A, an advanced military communications satellite built exclusively for the Air Force,[211] is similar to the Navy's GSAT-7, and GSAT-7A will enhance the IAF's network-centric warfare capabilities by interlinking different ground radar stations, ground airbases and airborne early warning and control (AWACS) aircraft such as the Beriev A-50 Phalcon and DRDO AEW&CS.

GSAT-7A will also be used by the Army's Aviation Corps for its helicopters and unmanned aerial vehicle (UAV) operations.[212] In 2013, ISRO launched GSAT-7 for the exclusive use of the Navy to monitor the Indian Ocean Region (IOR) with the satellite's 2000nmi 'footprint' and real-time input capabilities to Indian warships, submarines and maritime aircraft. To boost the network-centric operations of the IAF, ISRO launched GSAT-7A in December 2018.[213] The RISAT series of radar-imaging earth observation satellites is also meant for Military use.[214] ISRO launched EMISAT on 1 April 2019. EMISAT is a 436kg (961lb) electronic intelligence (ELINT) satellite. It will improve the situational awareness of the Indian Armed Forces by providing information and the location of hostile radars.[215]

India's satellites and satellite launch vehicles have had military spin-offs. While India's 93- range Prithvi missile is not derived from the Indian space programme, the intermediate range Agni missile is derived from the Indian space programme's SLV-3. In its early years, under Sarabhai and Dhawan, ISRO opposed military applications for its dual-use projects such as the SLV-3. Eventually, the Defence Research and Development Organisation (DRDO)-based missile programme borrowed staff and technology from ISRO. Missile scientist A.P.J. Abdul Kalam (later elected president), who had headed the SLV-3 project at ISRO, took over as missile programme at DRDO. About a dozen scientists accompanied him, helping to design the Agni missile using the SLV-3's solid fuel first stage and a liquid-fuel (Prithvi-missile-derived) second stage. The IRS and INSAT satellites were primarily intended, and used, for civilian-economic applications, but they also offered military spin-offs. In 1996 the Ministry of Defence temporarily blocked the use of IRS-1C by India's environmental and agricultural ministries in order to monitor ballistic missiles near India's borders. In 1997, the Air Force's "Airpower Doctrine" aspired to use space assets for surveillance and battle management.[216]

Academic

Institutions like the Indira Gandhi National Open University and the Indian Institutes of Technology use satellites for educational applications.[217] Between 1975 and 1976, India conducted its largest sociological programme using space technology, reaching 2,400villages through video programming in local languages aimed at educational development via ATS-6 technology developed by NASA. This experiment—named Satellite Instructional Television Experiment (SITE)—conducted large-scale video broadcasts resulting in significant improvement in rural education.

Telemedicine

ISRO has applied its technology for telemedicine, directly connecting patients in rural areas to medical professionals in urban locations via satellite. Since high-quality healthcare is not universally available in some of the remote areas of India, patients in those areas are diagnosed and analysed by doctors in urban centers in real time via video conferencing. The patient is then advised on medicine and treatment, and treated by the staff at one of the 'super-specialty hospitals' per instructions from those doctors. Mobile telemedicine vans are also deployed to visit locations in far-flung areas and provide diagnosis and support to patients.

Biodiversity Information System

ISRO has also helped implement India's Biodiversity Information System, completed in October 2002. Nirupa Sen details the programme: "Based on intensive field sampling and mapping using satellite remote sensing and geospatial modeling tools, maps have been made of vegetation cover on a 1: 250,000 scale. This has been put together in a web-enabled database that links gene-level information of plant species with spatial information in a BIOSPEC database of the ecological hot spot regions, namely northeastern India, Western Ghats, Western Himalayas and Andaman and Nicobar Islands. This has been made possible with collaboration between the Department of Biotechnology and ISRO."[218]

Cartography

The Indian IRS-P5 (CARTOSAT-1) was equipped with high-resolution panchromatic equipment to enable it for cartographic purposes. IRS-P5 (CARTOSAT-1) was followed by a more advanced model named IRS-P6 developed also for agricultural applications. The CARTOSAT-2 project, equipped with single panchromatic camera that supported scene-specific on-spot images, succeeded the CARTOSAT-1 project.

Spin-offs

See main article: ISRO spinoff technologies. ISRO's research has been diverted into spin-offs to develop various technologies for other sectors. Examples include bionic limbs for people without limbs, silica aerogel to keep Indian soldiers serving in extremely cold areas warm, distress alert transmitters for accidents, Doppler weather radar and various sensors and machines for inspection work in engineering industries.[219] [220]

International cooperations

ISRO has signed various formal cooperative arrangements in the form of either Agreements or Memoranda of Understanding (MoU) or Framework Agreements with Afghanistan, Algeria, Argentina, Armenia, Australia, Bahrain, Bangladesh, Bolivia, Brazil, Brunei, Bulgaria, Canada, Chile, China, Egypt, Finland, France, Germany, Hungary, Indonesia, Israel, Italy, Japan, Kazakhstan, Kuwait, Maldives, Mauritius, Mexico, Mongolia, Morocco, Myanmar, Norway, Peru, Portugal, South Korea, Russia, São Tomé and Príncipe, Saudi Arabia, Singapore, South Africa, Spain, Oman, Sweden, Syria, Tajikistan, Thailand, Netherlands, Tunisia, Ukraine, United Arab Emirates, United Kingdom, United States, Uzbekistan, Venezuela and Vietnam. Formal cooperative instruments have been signed with international multilateral bodies including European Centre for Medium-Range Weather Forecasts (ECMWF), European Commission, European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), European Space Agency (ESA) and South Asian Association for Regional Cooperation (SAARC).[221]

Notable collaborative projects

Indo-French satellite missionsISRO has two collaborative satellite missions with France's CNES, namely the now retired Megha-Tropiques to study water cycle in the tropical atmosphere and the presently avtive SARAL for altimetry. A third mission consisting of an Earth observation satellite with a thermal infrared imager, TRISHNA (Thermal infraRed Imaging Satellite for High resolution Natural resource Assessment) is being planned by the two countries.[223]
  • LUPEXThe Lunar Polar Exploration Mission (LUPEX) is a joint Indo-Japanese mission to study the polar surface of the Moon where India is tasked with providing soft landing technologies.[224]
    • NISARNASA-ISRO Synthetic Aperture Radar (NISAR) is a joint Indo-US radar project carrying an L Band and an S Band radar. It will be world's first radar imaging satellite to use dual frequencies.[225]

    Some other notable collaborations include:

    Statistics

    Last updated: 26 March 2023

    Budget for the Department of Space

    Calendar YearGDP (2011–12 base year) in crores(₹)[233] Total Expenditure in crores (₹)Budget of Department of Space[234] Notes and references
    Nominal INR (crore)% of GDP% of Total Expenditure2020 Constant INR (crore)
    1972–735524518.2325000Revised Estimate as Actuals are not available [235] [236]
    1973–746724119.0922000Revised Estimate as Actuals are not available [237]
    1974–757937830.7287000[238]
    1975–768521236.8379000[239]
    1976–779181241.1400000Revised Estimate as Actuals are not available
    1977–7810402437.3670000[240]
    1978–7911267151.4518000[241]
    1979–8012356257.0062000[242]
    1980–8114706382.1087000[243]
    1981–82172776109.132100Revised Estimate as Actuals are not available[244]
    1982–8319325594.8898000[245]
    1983–84225074163.365600[246]
    1984–85252188181.601000[247]
    1985–86284534229.102300[248]
    1986–87318366309.990900[249]
    1987–88361865347.084600[250]
    1988–89429363422.367000[251]
    1989–90493278398.559500[252]
    1990–91576109105298386.221800[253] [254]
    1991–92662260111414460.101000[255]
    1992–93761196122618490.920400[256]
    1993–94875992141853695.335000[257]
    1994–951027570160739759.079300[258] [259]
    1995–961205583178275755.778596[260]
    1996–9713948162010071062.44660[261]
    1997–9815452942320531050.50250[262]
    1998–9917722972793401401.70260[263] [264]
    1999–0019882622980531677.38580[265]
    2000–0121398863255921905.39970[266]
    2001–0223152433623101900.97370[267] [268]
    2002–0324926144132482162.22480[269]
    2003–0427925304712032268.80470[270]
    2004–0531863324982522534.34860[271]
    2005–0636321255057382667.60440[272]
    2006–0742546295833872988.66550[273] [274]
    2007–0848986627126713278.00440[275]
    2008–0955141528839563493.57150[276]
    2009–10636640710244874162.95990[277]
    2010–11763447211973284482.23150[278]
    2011–12873632913043653790.78880[279]
    2012–13994401314103724856.28390[280]
    2013–141123352215594475168.95140[281]
    2014–151246796016636735821.36630[282] [283]
    2015–161377187417907836920.00520[284] [285]
    2016–171539166919751948039.99680[286] [287]
    2017–181709004221419759130.56640[288] [289]
    2018–1918899668231511311192.6566[290] [291]
    2019–2020074856268633013033.2917[292] [293]
    2020–211980091435098369490.05390[294] [295]
    2021–2223664637379380112473.84[296] [297]

    Corporate affairs

    S-band spectrum scam

    In India, electromagnetic spectrum, a scarce resource for wireless communication, is auctioned by the Government of India to telecom companies for use. As an example of its value, in 2010, 20 MHz of 3G spectrum was auctioned for . This part of the spectrum is allocated for terrestrial communication (cell phones). However, in January 2005, Antrix Corporation (commercial arm of ISRO) signed an agreement with Devas Multimedia (a private company formed by former ISRO employees and venture capitalists from the US) for lease of S band transponders (amounting to 70 MHz of spectrum) on two ISRO satellites (GSAT 6 and GSAT 6A) for a price of, to be paid over a period of 12 years. The spectrum used in these satellites (2500 MHz and above) is allocated by the International Telecommunication Union specifically for satellite-based communication in India. Hypothetically, if the spectrum allocation is changed for utilisation for terrestrial transmission and if this 70 MHz of spectrum were sold at the 2010 auction price of the 3G spectrum, its value would have been over . This was a hypothetical situation. However, the Comptroller and Auditor-General considered this hypothetical situation and estimated the difference between the prices as a loss to the Indian Government.[298] [299]

    There were lapses on implementing official procedures. Antrix/ISRO had allocated the capacity of the above two satellites exclusively to Devas Multimedia, while the rules said it should always be non-exclusive. The Cabinet was misinformed in November 2005 that several service providers were interested in using satellite capacity, while the Devas deal was already signed. Also, the Space Commission was not informed when approving the second satellite (its cost was diluted so that Cabinet approval was not needed). ISRO committed to spending of public money on building, launching, and operating two satellites that were leased out for Devas.[300] In late 2009, some ISRO insiders exposed information about the Devas-Antrix deal,[301] and the ensuing investigations led to the deal's annulment. G. Madhavan Nair (ISRO Chairperson when the agreement was signed) was barred from holding any post under the Department of Space. Some former scientists were found guilty of "acts of commission" or "acts of omission". Devas and Deutsche Telekom demanded US$2 billion and US$1 billion, respectively, in damages.[302] The Department of Revenue and Ministry of Corporate Affairs began an inquiry into Devas shareholding.

    The Central Bureau of Investigation registered a case against the accused in the Antrix-Devas deal under Section 120-B, besides Section 420 of IPC and Section 13(2) read with 13(1)(d) of PC Act, 1988 in March 2015 against the then executive director of Antrix Corporation, two officials of a USA-based company, a Bengaluru-based private multimedia company, and other unknown officials of the Antrix Corporation or the Department of Space.[303] [304]

    Devas Multimedia started arbitration proceedings against Antrix in June 2011. In September 2015, the International Court of Arbitration of the International Chamber of Commerce ruled in favour of Devas, and directed Antrix to pay US$672 million (Rs 44.35 billion) in damages to Devas.[305] Antrix opposed the Devas plea for tribunal award in the Delhi High Court.[306]

    Heads of ISRO

    List of Chairmen (since 1963) of ISRO.

    1. Vikram Sarabhai (1963–1971)
    2. M. G. K. Menon (1972)
    3. Satish Dhawan (1973–1984)
    4. U. R. Rao (1984–1994)
    5. K. Kasturirangan (1994–2003)
    6. G. Madhavan Nair (2003–2009)
    7. K. Radhakrishnan (2009–2014)
    8. Shailesh Nayak (2015)
    9. A. S. Kiran Kumar (2015–2018)
    10. K. Sivan (2018–2022)
    11. S. Somanath (2022–present)

    See also

    Bibliography

    Further reading

    External links

    Notes and References

    1. Web site: Annual Report 2022-2023: 3.2 Human Resources . live . https://web.archive.org/web/20240128014945/https://www.isro.gov.in/media_isro/pdf/HumanResource.pdf . 28 January 2024 . . 139 .
    2. name="indiatoday-20240201">News: Budget 2024: Isro awarded with a boost, space gets Rs 13,042 crore outlay . live . https://web.archive.org/web/20240219182507/https://www.indiatoday.in/science/story/budget-2024-isro-awarded-with-a-boost-space-gets-rs-13042-crore-outlay-2496244-2024-02-01 . 19 February 2024 . .
    3. Web site: P. . Yogi . Full form ISRO: Indian Space Research Organization . live . https://web.archive.org/web/20240201173005/https://edustudynotes.com/isro-full-form . 1 February 2024 . 1 February 2024 . eduStudyNotes.com .
    4. Web site: Indian Space Research Organisation . 2023-08-22 . www.isro.gov.in . 5 November 2023 . https://web.archive.org/web/20231105193909/https://www.isro.gov.in/profile.html . live .
    5. News: Pulakkat . Hari . 2014-01-09 . How ISRO developed the indigenous cryogenic engine . The Economic Times . 2023-08-22 . 0013-0389 . 5 November 2023 . https://web.archive.org/web/20231105193907/https://economictimes.indiatimes.com/news/politics-and-nation/how-isro-developed-the-indigenous-cryogenic-engine/articleshow/28575364.cms . live .
    6. News: Mashal . Mujib . 2023-08-24 . India's Moon Landing Offers Blueprint For Other Countries Dreaming Big . live . https://web.archive.org/web/20231002162641/https://www.nytimes.com/2023/08/24/world/asia/india-chandrayaan-3-moon-landing-space.html . 2 October 2023 . 2023-08-27 . The New York Times . en-US . 0362-4331.
    7. Web site: 2019-08-29 . Government of India Atomic Energy Commission Department of Atomic Energy . 2023-08-22 . https://web.archive.org/web/20190829222918/http://dae.nic.in/?q=node/394 . 29 August 2019.
    8. Web site: Department of Space and ISRO HQ – ISRO . 28 March 2019 . https://web.archive.org/web/20190328053630/https://www.isro.gov.in/about-isro/department-of-space-and-isro-hq . 28 March 2019 . live.
    9. Web site: Aryabhata – ISRO . www.isro.gov.in . 15 August 2018 . https://web.archive.org/web/20180815200808/https://www.isro.gov.in/Spacecraft/aryabhata-1 . 15 August 2018 . live.
    10. News: 28 June 2019 . ISRO forms new commercial arm to exploit technology, launch satellites . live . https://web.archive.org/web/20231203012636/https://www.thehindubusinessline.com/news/science/isro-forms-new-psu-to-commercially-exploit-technology-launch-satellites/article28195144.ece . 3 December 2023 . 23 August 2023 . The Hindu BusinessLine . New Delhi .
    11. Web site: Government of India Atomic Energy Commission | Department of Atomic Energy . 21 September 2019 . https://web.archive.org/web/20190829222918/http://dae.nic.in/?q=node%2F394 . 29 August 2019 . dead.
    12. Web site: 'Success is yours, failure is mine' makes one a great leader: Mujumdar . 6 December 2022 . 6 December 2022 . https://web.archive.org/web/20221206214943/https://www.thehitavada.com/Encyc/2021/9/19/-Success-is-yours-failure-is-mine-makes-one-a-great-leader-Mujumdar.html . live .
    13. Web site: I'm proud that I recommended him for ISRO: EV Chitnis . Ashwini . Pawar . 29 July 2015 . DNA India . 13 July 2021 . 9 July 2021 . https://web.archive.org/web/20210709211836/https://www.dnaindia.com/mumbai/report-i-m-proud-that-i-recommended-him-for-isro-ev-chitnis-2109096 . live.
    14. Web site: About ISRO – ISRO . 28 March 2019 . https://web.archive.org/web/20190328065955/https://www.isro.gov.in/about-isro . 28 March 2019 . live.
    15. News: Chari . Sridhar K . Sky is not the limit . 14 March 2021 . The Tribune . 22 July 2006 . 19 September 2020 . https://web.archive.org/web/20200919142847/https://www.tribuneindia.com/2006/20060722/saturday/main1.htm . live.
    16. Book: Sheehan, Michael . The international politics of space . 2007 . Routledge . 978-0-415-39917-3 . London . 59–61 . 14 March 2021 . 13 April 2021 . https://web.archive.org/web/20210413211452/https://books.google.com/books?id=V-Z0kfqPHy8C . live.
    17. News: Indian ambitions in space go sky-high . 22 January 1981 . New Scientist . 215 . 14 March 2021 . 13 April 2021 . https://web.archive.org/web/20210413211511/https://books.google.com/books?id=IbbMj56ht8sC&pg=PA215 . live.
    18. Web site: First Successful Launch of SLV-3 – Silver Jubilee . ISRO . 17 . July–September 2005 . 15 March 2021 . 12 November 2020 . https://web.archive.org/web/20201112000426/https://www.isro.gov.in/sites/default/files/flipping_book/58-SI-Jul-Sep-05/files/assets/common/downloads/publication.pdf . live.
    19. Web site: SLV . isro.gov.in . 15 March 2021 . 29 May 2017 . https://web.archive.org/web/20170529133357/http://www.isro.gov.in/launchers/slv . live.
    20. Book: Sutton . George Paul . History of Liquid Propellant Rocket Engines . 2006 . AIAA . 978-1-56347-649-5 . 799 . en . 14 March 2021 . 13 April 2021 . https://web.archive.org/web/20210413211426/https://books.google.com/books?id=s1C9Oo2I4VYC&pg=PA799 . live.
    21. Web site: Timeline of LPSC . Liquid Propulsion Systems Centre . 15 March 2021 . 9 March 2021 . https://web.archive.org/web/20210309084932/https://www.lpsc.gov.in/timeline.html . live.
    22. News: Menon . Amarnath . Setback in the sky . 18 January 2014 . India Today . 15 April 1987 . 20 January 2014 . https://web.archive.org/web/20140120143457/http://indiatoday.intoday.in/story/failure-of-aslv-mission-comes-a-major-blow-to-india-ambitious-space-programme/1/336942.html . live.
    23. Web site: Communication Satellites . Indian Space Research Organisation . 16 March 2021 . 26 February 2021 . https://web.archive.org/web/20210226184331/https://www.isro.gov.in/spacecraft/communication-satellites . live.
    24. Navalgund . R. R. . Kasturirangan . K. . 1 December 1983 . The Indian remote sensing satellite: a programme overview . Proceedings of the Indian Academy of Sciences Section C: Engineering Sciences . en . 6 . 4 . 313–336 . 10.1007/BF02881137 . 0973-7677 . 1983InES....6..313N . 140649818.
    25. Web site: The Saga of Indian Remote Sensing Satellite System – ISRO . www.isro.gov.in . 16 March 2021 . 27 June 2019 . https://web.archive.org/web/20190627192046/https://www.isro.gov.in/saga-of-indian-remote-sensing-satellite-system . live.
    26. Web site: PSLV (1) . Gunter's Space Page . 16 March 2021 . 5 December 2020 . https://web.archive.org/web/20201205170455/https://space.skyrocket.de/doc_lau_det/pslv_1.htm . live.
    27. News: Subramanian . T S . The GSLV Quest . 16 March 2021 . Frontline . 17–31 March 2001 . 1 April 2014 . https://web.archive.org/web/20140401030910/http://www.frontline.in/navigation/?type=static&page=flonnet&rdurl=fl1806%2F18060820.htm . live.
    28. News: Raj . N Gopal . The long road to cryogenic technology . 12 December 2013 . The Hindu . 21 April 2011 . Chennai, India . 21 June 2014 . https://web.archive.org/web/20140621064359/http://www.thehindu.com/opinion/lead/the-long-road-to-cryogenic-technology/article397441.ece . live.
    29. News: Subramanian . T S . The cryogenic quest . 13 December 2013 . Frontline . 28 April – 11 May 2001 . 13 December 2013 . https://web.archive.org/web/20131213054718/http://www.frontline.in/static/html/fl1809/18090140.htm . live.
    30. Web site: Why ISRO's New Engine and Mk III Rocket Are Reasons to Forget 1990 Cryogenic Scandal . The Wire . 10 February 2018 . 11 February 2018 . https://web.archive.org/web/20180211192523/https://thewire.in/138915/cryogenic-ce-20-isro-gslv-mk-iii/ . live.
    31. Web site: 20 April 2021 . Master Sanctions Chart – State Department . live . https://web.archive.org/web/20210504170258/https://www.state.gov/wp-content/uploads/2021/04/MASTER-Sanctions-chart-April-2021.pdf . 4 May 2021 . 4 May 2021.
    32. News: How Kargil spurred India to design own GPS . Srivastava . Ishan . 5 April 2014 . 9 December 2014 . . 15 December 2016 . https://web.archive.org/web/20161215183718/http://timesofindia.indiatimes.com/home/science/How-Kargil-spurred-India-to-design-own-GPS/articleshow/33254691.cms . live.
    33. News: India 'on course' for the Moon . BBC News . 4 April 2003 . 16 March 2021 . 21 January 2019 . https://web.archive.org/web/20190121160746/http://news.bbc.co.uk/2/hi/south_asia/2917271.stm . live.
    34. News: MIP detected water on Moon way back in June: ISRO Chairman . 25 September 2009 . The Hindu . 12 March 2021 . 25 January 2016 . https://web.archive.org/web/20160125193516/http://www.thehindu.com/sci-tech/science/mip-detected-water-on-moon-way-back-in-june-isro-chairman/article24854.ece . live.
    35. News: India's Mars satellite successfully enters orbit, bringing country into space elite . The Guardian . Jason . Burke . 24 September 2014 . 16 March 2021 . India has become the first nation to send a satellite into orbit around Mars on its first attempt, and the first Asian nation to do so. . 4 December 2019 . https://web.archive.org/web/20191204185909/https://www.theguardian.com/science/2014/sep/24/india-mars-satellite-successfully-enters-orbit . live.
    36. News: Narasimhan . T. E. . 7 January 2014 . ISRO on cloud nine as India joins 'cryo club' . live . https://web.archive.org/web/20221111074324/https://www.business-standard.com/article/current-affairs/isro-on-cloud-nine-as-india-joins-cryo-club-114010700023_1.html . 11 November 2022 . 12 March 2021 . Chennai . .
    37. Web site: GSLV Mk III . ISRO . 16 March 2021 . 20 September 2018 . https://web.archive.org/web/20180920234908/https://www.isro.gov.in/launchers/gslv-mk-iii . live.
    38. News: Dhillon . Amrit . 2023-08-23 . India lands spacecraft near south pole of moon in world first . en-GB . The Guardian . 2023-08-23 . 0261-3077 . 5 November 2023 . https://web.archive.org/web/20231105194944/https://www.theguardian.com/science/2023/aug/23/india-chandrayaan-3-moon-landing-mission . live .
    39. Web site: 23 August 2023 . Chandrayaan-3 Live Updates: 'Dawn of new India,' says PM Modi as ISRO lands spacecraft on the Moon . https://web.archive.org/web/20231105194950/https://indianexpress.com/article/india/chandrayaan-3-moon-landing-live-updates-isro-vikram-lander-8903547/ . 5 November 2023 . 23 August 2023 . indianexpress.com . Indian Express . live .
    40. India's first Sun mission will investigate the origins of space weather . T. V. Padma . September 4, 2023 . . 621 . 7978 . 240–241 . 10.1038/d41586-023-02811-2 . 37667110 . 2023Natur.621..240P . 261526289 . September 5, 2023 . 5 October 2023 . https://web.archive.org/web/20231005030143/https://www.nature.com/articles/d41586-023-02811-2 . live .
    41. Web site: India launches Aditya-L1 solar observatory, its 1st-ever sun probe . Mike . Wall . . September 2, 2023 . September 5, 2023 . 20 October 2023 . https://web.archive.org/web/20231020230548/https://www.space.com/india-launches-aditya-l1-first-solar-probe . live .
    42. Web site: ISRO gets new identity . Indian Space Research Organisation . 19 August 2018 . https://web.archive.org/web/20180820005819/https://www.isro.gov.in/sites/default/files/flipping_book/47-SI-Apr-Jun-2002/files/assets/basic-html/page-15.html . 20 August 2018 . live.
    43. News: A 'vibrant' new logo for ISRO . 19 August 2018 . Times of India . 19 August 2002 . https://web.archive.org/web/20180909102134/https://timesofindia.indiatimes.com/india/A-vibrant-new-logo-for-Isro/articleshow/19567123.cms . 9 September 2018 . live.
    44. Web site: ISRO – Vision and Mission Statements . ISRO . 27 August 2015 . https://web.archive.org/web/20150904080053/http://www.isro.gov.in/about-isro/vision-and-mission-statements . 4 September 2015 . live.
    45. Web site: Dr. Vikram Ambalal Sarabhai (1963–1971) – ISRO . 21 September 2019 . https://web.archive.org/web/20190422014937/https://www.isro.gov.in/about-isro/dr-vikram-ambalal-sarabhai-1963-1971 . 22 April 2019 . live.
    46. Web site: List of Important Speeches And Papers By Dr. Vikram A. Sarabhai. . live . https://web.archive.org/web/20190627181445/https://www.prl.res.in/~library/sarabhai_v_speeches.pdf . 27 June 2019 . 27 June 2019 . PRL.res.in . 113 .
    47. Book: Wings of Fire: An Autobiography . Kalam . Avul Pakir Jainulabdeen Abdul . Tiwari . Arun . 1999 . Universities Press . 9788173711466 . en . 16 August 2019 . 17 April 2017 . https://web.archive.org/web/20170417091638/https://books.google.com/books?id=c3qmIZtWUjAC . live.
    48. Web site: Hennock etc. (2008), "The Real Space Race Is in Asia", Newsweek. . . 25 December 2008 . https://web.archive.org/web/20081222044922/http://www.newsweek.com/id/160037 . 22 December 2008 . live . 20 September 2008.
    49. Web site: Organisation Structure . live . https://web.archive.org/web/20220612065305/https://www.isro.gov.in/about-isro/organisation-structure . 12 June 2022 . 12 June 2022 . dmy-all.
    50. Web site: Foundation stone of Space Situational Awareness Control Centre by Chairman, ISRO – ISRO . www.isro.gov.in . 3 August 2019 . https://web.archive.org/web/20190830223917/http://isro.gov.in/update/03-aug-2019/foundation-stone-of-space-situational-awareness-control-centre-chairman-isro . 30 August 2019 . live.
    51. Web site: Inauguration of Human Space Flight Centre (HSFC) – ISRO . www.isro.gov.in . 3 August 2019 . https://web.archive.org/web/20190329015418/https://www.isro.gov.in/update/30-jan-2019/inauguration-of-human-space-flight-centre-hsfc . 29 March 2019 . live.
    52. Web site: NEC – North Eastern Council . Necouncil.nic.in . 8 February 2013 . dead . https://web.archive.org/web/20120225165210/http://necouncil.nic.in/index3.asp?sslid=72&subsublinkid=153 . 25 February 2012.
    53. Web site: About Us . 22 July 2022 . . 14 July 2017 . https://web.archive.org/web/20170714161347/https://www.narl.gov.in/ . live .
    54. Web site: About NESAC . 22 July 2022 . . 22 July 2022 . https://web.archive.org/web/20220722115617/https://nesac.gov.in/about/about-nesac/ . live .
    55. News: Second Vehicle Assembly Building being realised at ISRO . The Economic Times . 20 January 2016 . 11 January 2016 . https://web.archive.org/web/20160114044154/http://economictimes.indiatimes.com/news/science/second-vehicle-assembly-building-being-realised-at-isro/articleshow/50531617.cms . 14 January 2016 . live.
    56. News: Madumathi . D.S. . Sriharikota space port scores 50 . 20 January 2016 . The Hindu . 6 January 2016 . https://web.archive.org/web/20160109041156/http://www.thehindu.com/todays-paper/tp-national/sriharikota-space-port-scores-50/article8070373.ece . 9 January 2016 . live.
    57. Web site: Sounding Rockets . 22 July 2022 . ISRO . 11 December 2019 . https://web.archive.org/web/20191211145536/https://www.isro.gov.in/launchers/sounding-rockets . dead.
    58. Web site: Indian Space Science Data Centre (ISSDC) – Gateway to India's Space Science Data . 22 July 2022 . ISRO . 1 September 2019 . https://web.archive.org/web/20190901140723/https://www.isro.gov.in/indian-space-science-data-centre-issdc-gateway-to-indias-space-science-data . dead.
    59. Web site: SRO Telemetry, Tracking and Command Network (ISTRAC) . 22 July 2022 . ISRO . 28 March 2019 . https://web.archive.org/web/20190328053757/https://www.isro.gov.in/about-isro/isro-telemetry-tracking-and-command-network-istrac . dead.
    60. Web site: New Isro system to shield its assets from space debris . Singh . Surendra . 5 August 2019 . The Times of India . en . 6 August 2019 . https://web.archive.org/web/20190826090921/https://timesofindia.indiatimes.com/india/new-isro-system-to-shield-its-assets-from-space-debris/articleshow/70528348.cms . 26 August 2019 . live.
    61. Web site: Isro keen on protecting space assets; new centre soon . Kumar . Chethan . 4 August 2019 . The Times of India . en . 6 August 2019 . https://web.archive.org/web/20190825154922/https://timesofindia.indiatimes.com/india/isro-keen-on-protecting-space-assets-new-centre-soon/articleshow/70520904.cms . 25 August 2019 . live.
    62. Web site: Institute Profile . . 22 July 2022 . 12 July 2022 . https://web.archive.org/web/20220712154554/https://www.iirs.gov.in/institute-profile/ . live .
    63. Web site: Institute IIST . 22 July 2022 . . 4 November 2014 . 22 July 2022 . https://web.archive.org/web/20220722115615/https://www.iist.ac.in/aboutus/institute . live .
    64. News: Space tech centre: ISRO team in NIT-Rourkela . 12 March 2021 . ENS . New Indian Express . 10 March 2021 . 10 March 2021 . https://web.archive.org/web/20210310062726/https://www.newindianexpress.com/states/odisha/2021/mar/10/space-tech-centre-isro-team-in-nit-rourkela-2274636.html . live.
    65. Web site: 18 March 2021 . Dr. K. Sivan, Chairman, ISRO / Secretary, DOS inaugurates 3 Space Technology Incubation Centres and releases युक्ति-संचिता YUKTI- Sanchita 2021 . 20 March 2021 . ISRO . 19 March 2021 . https://web.archive.org/web/20210319152059/https://www.isro.gov.in/update/18-mar-2021/dr-k-sivan-chairman-isro-secretary-dos-inaugurates-3-space-technology-incubation . live.
    66. Web site: Space Innovation Centre – ISRO . 7 July 2021 . www.isro.gov.in . 9 July 2021 . https://web.archive.org/web/20210709184445/https://www.isro.gov.in/capacity-building/space-innovation-centre . live.
    67. Web site: 26 August 2020 . VSSUT first to set up Space Innovation-cum-Incubation Centre with ISRO . 7 July 2021 . Hindustan Times . en . 9 July 2021 . https://web.archive.org/web/20210709185416/https://www.hindustantimes.com/education/vssut-first-to-set-up-space-innovation-cum-incubation-centre-with-isro/story-baqiVPndKjIN1I6Z5ud9lJ.html . live.
    68. Web site: 24 December 2020 . ISRO to set up its regional centre at IIT-BHU . 27 December 2020 . Hindustan Times . en . 27 December 2020 . https://web.archive.org/web/20201227092259/https://www.hindustantimes.com/education/isro-to-set-up-its-regional-centre-at-iit-bhu/story-UUNEDrrsqHU9JvPddg8IoN.html . live.
    69. Web site: Antrix responsible for marketing ISRO tech . https://archive.today/20130426170804/http://articles.timesofindia.indiatimes.com/2011-02-09/india/28547101_1_isro-eads-astrium-antrix-corporation . dead . 26 April 2013 . . 24 February 2013.
    70. News: ISRO's commercial arm Antrix gets new chief . 9 June 2011 . The Hindu . 24 February 2013 . 30 May 2022 . https://web.archive.org/web/20220530200912/https://www.thehindubusinessline.com/economy/ . live.
    71. Web site: ISRO's NewSpace India Limited takes off in Bengaluru . 27 May 2019 . Deccan Herald . en . 10 January 2020 . 1 August 2020 . https://web.archive.org/web/20200801233311/https://www.deccanherald.com/science-and-environment/isros-newspace-india-limited-takes-off-in-bengaluru-736355.html . live.
    72. Web site: Isro opens space tech incubation centre at NIT-T . 30 May 2019 . The Times of India . en . 1 June 2019 . 28 September 2020 . https://web.archive.org/web/20200928200817/https://timesofindia.indiatimes.com/city/trichy/isro-opens-space-tech-incubation-centre-at-nit-t/articleshow/69569218.cms . live.
    73. Web site: Advanced Space Research Group (ASRG) . 6 March 2022 . 21 June 2021 . https://web.archive.org/web/20210621092504/https://iist.ac.in/innovation/asrg-vision . live.
    74. News: ISRO embarking on replicating NASA partnership model in India . 31 March 2021 . PTI . The Hindu . 26 March 2021 . 26 March 2021 . https://web.archive.org/web/20210326204501/https://www.thehindu.com/news/national/karnataka/isro-embarking-on-replicating-nasa-partnership-model-in-india/article34169199.ece . live.
    75. Web site: Pathri . Rajasekhar . 16 May 2015 . Isro's tracking radar to start work . live . 30 September 2021 . Deccan Chronicle . en . 30 September 2021 . https://web.archive.org/web/20210930071532/https://www.deccanchronicle.com/150516/nation-current-affairs/article/isro%E2%80%99s-tracking-radar-start-work.
    76. News: ISRO chairman lays foundation stone for Space Situational Awareness Control Centre in Bengaluru . 11 April 2022 . IANS . ANI . 3 August 2019 . 3 August 2019 . https://web.archive.org/web/20190803191709/https://www.aninews.in/news/national/general-news/isro-chairman-lays-foundation-stone-for-space-situational-awareness-control-centre-in-bengaluru20190803215041/ . live.
    77. News: D.S . Madhumathi . 24 September 2019 . ISRO initiates 'Project NETRA' to safeguard Indian space assets from debris and other harm . en-IN . The Hindu . 26 September 2021 . 0971-751X . 26 September 2021 . https://web.archive.org/web/20210926083059/https://www.thehindu.com/sci-tech/science/isro-initiates-project-netra-to-safeguard-indian-space-assets-from-debris-and-other-harm/article29497795.ece . live.
    78. News: India, United States to sign space MoU during 2+2 meeting in Washington . 11 April 2022 . IANS . Business Standard . 11 April 2022 . 11 April 2022 . https://web.archive.org/web/20220411042152/https://www.business-standard.com/article/international/india-united-states-to-sign-space-mou-during-2-2-meeting-in-washington-122041100164_1.html . live.
    79. Readout of U.S. - India 2+2 Ministerial Dialogue . 14 April 2022 . . en-US . 13 April 2022 . https://web.archive.org/web/20220413222404/https://www.defense.gov/News/Releases/Release/Article/2996350/readout-of-us-india-22-ministerial-dialogue/ . live.
    80. News: Roy Chaudhury . Dipanjan . India, US to conclude MoU to safeguard satellites from natural, man-made threats . 11 April 2022 . The Economic Times . 30 September 2021 . 11 April 2022 . https://web.archive.org/web/20220411141943/https://economictimes.indiatimes.com/news/science/india-us-to-conclude-mou-to-safeguard-satellites-from-natural-man-made-threats/articleshow/86632984.cms . live.
    81. News: 2022-07-11 . ISRO launches new system for space observation and debris management . en-IN . The Hindu . 2022-07-13 . 0971-751X . 13 July 2022 . https://web.archive.org/web/20220713170336/https://www.thehindu.com/news/cities/bangalore/isro-launches-new-system-for-space-observation-and-debris-management/article65628392.ece . live .
    82. News: Kumar . Chethan . 2023-03-07 . Isro successfully completes controlled re-entry of decommissioned satellite Megha-Tropiques . The Times of India . 2023-03-08 . 0971-8257 . 8 March 2023 . https://web.archive.org/web/20230308073436/https://timesofindia.indiatimes.com/home/science/isro-successfully-completes-controlled-re-entry-of-decommissioned-satellite-megha-tropiques/articleshow/98482698.cms . live .
    83. News: 2024-04-17 . India aims to achieve debris-free space missions by 2030: Isro chief . 2024-04-21 . The Times of India . 0971-8257.
    84. Web site: ISRO adopts new satellite naming style, RISAT-2BR2 now EOS-01 . 7 November 2020 . telanganatoday.com . 28 October 2020 . 2 November 2020 . https://web.archive.org/web/20201102032056/https://telanganatoday.com/isro-adopts-new-satellite-naming-style-risat-2br2-now-eos-01 . live.
    85. News: 17 December 2020 . ISRO launches India's 42nd communication satellite CMS-01 on-board PSLV-C50 . Business Today . 19 March 2021 . 13 April 2021 . https://web.archive.org/web/20210413203459/https://m.businesstoday.in/story/isro--to-launch-indias-42nd--communication-satellite-cms01-onboard-pslv-c50/1/425216.html . live.
    86. News: Indian Navy: Navy to buy Rs 1589 crore satellite from ISRO . The Economic Times . 19 March 2021 . Pubby . Manu . 8 November 2020 . https://web.archive.org/web/20201108003515/https://economictimes.indiatimes.com/news/defence/navy-to-buy-rs-1589-crore-satellite-from-isro/articleshow/70283927.cms . live.
    87. Web site: GSAT-7A . ISRO . 19 March 2021 . 22 March 2021 . https://web.archive.org/web/20210322211332/https://www.isro.gov.in/launcher/gslv-f11-gsat-7a-mission . live.
    88. Web site: GSAT-9 . ISRO . 19 March 2021 . 15 April 2021 . https://web.archive.org/web/20210415014043/https://www.isro.gov.in/Spacecraft/gsat-9 . live.
    89. Web site: Ensuring safety and reliabity through indigenous satellite navigation system GAGAN . 12 January 2019 . Times of India Blog . en-US . 19 March 2021 . 4 May 2019 . https://web.archive.org/web/20190504121357/https://timesofindia.indiatimes.com/blogs/mindfly/ensuring-safety-and-reliabity-through-indigenous-satellite-navigation-system-gagan/ . live.
    90. Web site: Navigation Satellite . ISRO . 26 January 2014 . https://web.archive.org/web/20131023005513/http://www.isro.org/satellites/navigationsatellites.aspx . 23 October 2013 . dead.
    91. Web site: eoPortal directory: Kalpana-1/MetSat-1 (Meteorological Satellite-1) . Eoportal.org . 11 March 2011 . dead . https://archive.today/20120908092933/http://www.eoportal.org/directory/pres_Kalpana1MetSat1MeteorologicalSatellite1.html . 8 September 2012.
    92. Web site: Space Technology in India | Indian Space Research Organisation (ISRO) . Indiaonline.in . 11 March 2011 . dead . https://web.archive.org/web/20110721162412/http://www.indiaonline.in/Profile/Science/research/Space-Technology.aspx . 21 July 2011.
    93. News: India successfully launches Indo-French, 6 foreign satellites . 25 February 2013 . The Indian Express . 25 February 2013 . https://web.archive.org/web/20130301034013/http://www.indianexpress.com/news/india-successfully-launches-indofrench-6-foreign-satellites/1079446/0 . 1 March 2013 . live.
    94. Web site: Satellite SARAL . Ilrs.gsfc.nasa.gov . 24 July 2012 . dead . https://web.archive.org/web/20120705114650/http://ilrs.gsfc.nasa.gov/satellite_missions/list_of_satellites/sara_general.html . 5 July 2012.
    95. Web site: Augumented Satellite Launch Vehicle . 19 July 2009 . dead . https://web.archive.org/web/20090829151541/http://www.bharat-rakshak.com/SPACE/space-launchers-aslv.html . 29 August 2009.
    96. Web site: 15 November 2018 . 'India masters rocket science': Here's why the new ISRO launch is special . Hindustan Times . 19 March 2021 . 15 November 2018 . https://web.archive.org/web/20181115195243/https://www.hindustantimes.com/india-news/india-masters-rocket-science-with-isro-sucessfully-launching-gsat-29-satellite/story-m72QQBzx7fxEYLyyoMRgPI.html . live.
    97. News: Gaganyaan: Isro's unmanned space mission for December 2020 likely to be delayed . Business Standard . 16 August 2020 . 19 March 2021 . Press Trust of India . 13 April 2021 . https://web.archive.org/web/20210413203718/https://wap.business-standard.com/article-amp/current-affairs/gaganyaan-isro-s-unmanned-space-mission-for-dec-2020-likely-to-be-delayed-120081600635_1.html . live.
    98. Web site: Episode 90 – An update on ISRO's activities with S Somanath and R Umamaheshwaran . 24 October 2019 . 19 March 2021 . AstrotalkUK . 29 October 2019 . https://web.archive.org/web/20191029030030/https://astrotalkuk.org/episode-90-an-update-on-isros-activities-with-s-somanath-and-r-umamaheshwaran/ . live.
    99. Web site: GSLV MkIII-D2 successfully launches GSAT-29 . ISRO . 14 November 2018 . https://web.archive.org/web/20181114224155/https://www.isro.gov.in/update/14-nov-2018/gslv-mkiii-d2-successfully-launches-gsat-29 . 14 November 2018 . live.
    100. Web site: ISRO launches LVM3-M3 OneWeb India-2 mission with 36 satellites; all you need to know . MINT . 26 March 2023 . 26 March 2023 . 26 March 2023 . https://web.archive.org/web/20230326010816/http://www.livemint.com/news/india/isro-lvm-iii-rocket-with-36-oneweb-satellites-launch-11679790470686.html . live .
    101. Web site: SSLV technical brochure V12 . 20 December 2019 . live . https://web.archive.org/web/20191220153651/http://nsilindia.co.in/sites/default/files/u1/SSLV%20Technical%20Brochure%20V12.pdf . 20 December 2019 . 20 December 2019.
    102. Gunter's space page: SSLV
    103. Web site: SSLV . space.skyrocket.de . 2018-12-09 . 17 August 2018 . https://web.archive.org/web/20180817092258/https://space.skyrocket.de/doc_lau/sslv.htm . live .
    104. Web site: Department of Space presentation on 18 January 2019 . 18 January 2019 . 30 January 2019 . 30 January 2019 . https://web.archive.org/web/20190130053353/http://pibphoto.nic.in/documents/rlink/2019/jan/p201911802.pdf . live .
    105. News: 7 November 2006 . Scientists Discuss Indian Manned Space Mission . ISRO . 20 March 2021 . 13 April 2021 . https://web.archive.org/web/20210413203522/https://www.isro.gov.in/update/07-nov-2006/scientists-discuss-indian-manned-space-mission . live.
    106. News: ISRO considering manned space mission: Nair . The Hindu . Chennai, India . 9 August 2007 . 20 March 2021 . 30 September 2007 . https://web.archive.org/web/20070930220809/http://www.hindu.com/thehindu/holnus/008200708091621.htm . live.
    107. Web site: 21 November 2007 . Space Capsule Recovery Experiment(SRE) . dead . https://web.archive.org/web/20131224103000/http://www.aprsaf.org/data/aprsaf14_data/day1/SEU10_SRE%20slides%20for%20web.pdf . 24 December 2013 . 20 March 2021 .
    108. Web site: Plan panel okays ISRO manned space flight . The Indian Express . 23 February 2009 . 11 March 2011 . https://web.archive.org/web/20090607014311/http://www.indianexpress.com/news/plan-panel-okays-isro-manned-space-flight/426945 . 7 June 2009 . live.
    109. News: Satellites Are Our Priority Now, Not Human Space Flight . Outlook . 15 July 2017 . 20 March 2021 . 29 October 2021 . https://web.archive.org/web/20211029191931/https://www.outlookindia.com/magazine/story/satellites-are-our-priority-now-not-human-space-flight/299103 . live.
    110. News: GSLV Mark III takes to the skies in test flight . The Hindu . 18 December 2014 . 7 September 2018 . https://web.archive.org/web/20170602005710/http://www.thehindu.com/sci-tech/science/india-successfully-test-fires-gslv-markiii-its-heaviest-rocket/article6703691.ece . 2 June 2017 . live . Kandavel . Sangeetha.
    111. Web site: India to launch unmanned crew module in December . . 30 October 2014 . 20 March 2021 . https://web.archive.org/web/20141102044330/http://economictimes.indiatimes.com/news/science/india-to-launch-unmanned-crew-module-in-december/articleshow/44987199.cms . 2 November 2014 . live.
    112. News: ISRO's first 'pad abort' test, critical for future human space mission, successful . The Hindu . 5 July 2018 . 15 August 2018 . www.thehindu.com . https://web.archive.org/web/20180705205114/https://www.thehindu.com/sci-tech/technology/isros-first-pad-abort-test-successful/article24336860.ece . 5 July 2018 . live.
    113. News: Gaganyaan mission to take Indian astronaut to space by 2022: PM Modi . The Hindu . 15 August 2018 . 15 August 2018 . www.thehindu.com . 27 April 2021 . https://web.archive.org/web/20210427090426/https://www.thehindu.com/news/national/gaganyaan-mission-to-take-indian-astronaut-to-space-by-2022-pm-modi/article24695817.ece . live.
    114. Web site: Indian Astronaut Will Be in Space For 7 Days, Confirms ISRO Chairman . 15 August 2018 . https://web.archive.org/web/20180815151504/https://www.ndtv.com/india-news/india-plans-to-put-man-in-space-for-7-days-says-indian-space-research-organisation-chairman-k-sivan-1900888 . 15 August 2018 . live.
    115. Web site: JFK in 1961, Modi in 2018: PM announces 'Indian in space by 2022,' but is ISRO ready? . 15 August 2018 . 15 August 2018 . https://web.archive.org/web/20180815201219/https://www.thenewsminute.com/article/jfk-1961-modi-2018-pm-announces-indian-space-2022-isro-ready-86635?amp . 15 August 2018 . live.
    116. News: ISRO starts Human Space Flight centre . Ds . Madhumathi . 11 January 2019 . The Hindu . 11 January 2019 . en-IN . 0971-751X . https://web.archive.org/web/20190531074335/https://www.thehindu.com/sci-tech/science/isro-announces-human-space-flight-centre/article25967944.ece . 31 May 2019 . live.
    117. Web site: India's human space programme gets a fillip . The New Indian Express . 15 November 2018 . 11 January 2019 . Initially, the plan was the construct a new launch pad for the human space flight, but Sivan told the Express that due to paucity of time one of the two existing launch pads is being modified to meet the requirement. . https://web.archive.org/web/20190112095045/http://www.newindianexpress.com/nation/2018/nov/15/indias-human-space-programme-gets-a-fillip-1898396.html . 12 January 2019 . live.
    118. Web site: Gaganyaan: India chooses Russia to pick & train astronauts . 1 July 2019 . The Times of India . en . 1 August 2019 . https://web.archive.org/web/20190723221603/https://timesofindia.indiatimes.com/india/its-official-india-picks-russia-to-pick-train-astronauts/articleshow/70031169.cms . 23 July 2019 . live.
    119. Web site: Isro will set up unit in Moscow to develop technology needed for Gaganyaan mission . Singh . Surendra . 31 July 2019 . The Times of India . en . 1 August 2019 . https://web.archive.org/web/20190820164300/https://timesofindia.indiatimes.com/india/isro-will-set-up-unit-in-moscow-to-develop-technology-needed-for-gaganyaan-mission/articleshow/70471565.cms . 20 August 2019 . live.
    120. News: Kumar . Chethan . 19 March 2021 . Gaganyaan: Astronauts clear all tests, Russia training to end this month . The Times of India . 21 March 2021 . 20 March 2021 . https://web.archive.org/web/20210320132145/https://timesofindia.indiatimes.com/india/astronauts-clear-all-tests-russia-training-to-end-this-month/articleshow/81575438.cms . live.
    121. News: Dutt . Anonna . 2023-04-09 . Gaganyaan: From astronauts' training to tech upgrade, ISRO making leaps to meet 2025 target for manned mission . 2023-08-08 . . en-IN . 6 July 2023 . https://web.archive.org/web/20230706003805/https://indianexpress.com/article/india/gaganyaan-from-astronauts-training-to-tech-upgrade-isro-making-leaps-to-meet-2025-target-for-manned-mission-8546259/ . live .
    122. News: India planning to have own space station: ISRO chief . 13 June 2019 . The Economic Times . 21 July 2019 . https://web.archive.org/web/20190702043332/https://economictimes.indiatimes.com/news/science/india-planning-to-have-own-space-station-isro-chief/articleshow/69771669.cms . 2 July 2019 . live.
    123. Web site: India's own space station to come up in 5–7 years: Isro chief . 13 June 2019 . The Times of India . en . 22 July 2019 . https://web.archive.org/web/20190804044046/https://timesofindia.indiatimes.com/india/india-to-have-its-own-space-station-isro/articleshow/69775360.cms . 4 August 2019 . live.
    124. News: India's space station likely to have space for three . 31 October 2019 . . 1 November 2019 . 31 October 2019 . https://web.archive.org/web/20191031235228/https://timesofindia.indiatimes.com/india/indias-space-station-likely-to-have-space-for-three/articleshow/71828669.cms . live.
    125. News: India to have its own space station: ISRO . Peri . Dinakar . 13 June 2019 . The Hindu . 1 November 2019 . en-IN . 0971-751X .
    126. Web site: India to have its own space station: ISRO . The Hindu . 2019-06-13 . 10 August 2019 . https://web.archive.org/web/20190810173302/https://www.thehindu.com/sci-tech/science/india-to-have-a-separate-space-station-isro/article27898707.ece . live.
    127. Web site: Stratospheric balloon launch bases and sites . StratoCat . 4 November 2015 . https://web.archive.org/web/20160303170531/http://stratocat.com.ar/bases/31e.htm . 3 March 2016 . live.
    128. Web site: Balloon X-ray astronomy experiments from India . 17 March 2009 . dead . https://web.archive.org/web/20020528045243/http://www.isro.org/space_science/images/BalloonXrayStudies.htm . 28 May 2002.
    129. Harris . Melanie J. . Wickramasinghe . N.C. . Lloyd . David . etal . 2002 . Instruments, Methods, and Missions for Astrobiology IV . 10.1117/12.454758 . Proc. SPIE . 4495 . Detection of living cells in stratospheric samples . 192 . Instruments, Methods, and Missions for Astrobiology IV . 21 September 2019 . https://web.archive.org/web/20170922023031/http://repository.iucaa.in:8080/jspui/bitstream/11007/1631/1/295aB_2002.pdf . 22 September 2017 . live . 2002SPIE.4495..192H . 129736236.
    130. Shivaji . S. . Chaturvedi . P. . Begum . Z. . etal . 2009 . Janibacter hoylei sp.nov., Bacillus isronensis sp.nov. and Bacillus aryabhattai sp.nov. isolated from cryotubes used for collecting air from the upper atmosphere . International Journal of Systematic and Evolutionary Microbiology . 59 . 12 . 2977–2986 . 10.1099/ijs.0.002527-0 . 19643890 . free.
    131. Web site: Three years of AstroSat – ISRO . www.isro.gov.in . en . 28 September 2018 . https://web.archive.org/web/20190830213436/http://isro.gov.in/update/28-sep-2018/three-years-of-astrosat . 30 August 2019 . live.
    132. Web site: Dutt . Anonna . 17 September 2021 . 'India's first solar mission likely to launch next year': ISRO . . 18 September 2021 . 17 September 2021 . https://web.archive.org/web/20210917230256/https://www.hindustantimes.com/india-news/indias-first-solar-mission-likely-to-launch-next-year-isro-101631860455183.html . live.
    133. Web site: Future Exploration Missions of ISRO . https://web.archive.org/web/20180921095058/http://www.unoosa.org/documents/pdf/copuos/2017/copuos2017tech30E.pdf . 21 September 2018 . Indian Space Research Organisation (ISRO) . Dr. M. Annadurai, director, ISAC, ISRO. UNCOPUOS 60th Session, Vienna, 2019 . 10 December 2021.
    134. Web site: Chandrayaan 2 launched: Here are future ISRO missions to space . 22 July 2019 . The Indian Express . en-IN . 23 July 2019 . https://web.archive.org/web/20190726085439/https://indianexpress.com/article/technology/science/chandrayaan-2-launched-here-are-future-isro-missions-to-space-5842337/ . 26 July 2019 . live.
    135. News: Nigam . Saumya . 26 December 2023 . ISRO to launch PSLV-C58 with XPoSAT on January 1 to study black holes, neutron stars . live . https://web.archive.org/web/20231228060344/https://www.indiatvnews.com/science/isro-to-launch-pslv-c58-with-xposat-on-january-1-to-study-black-holes-neutron-stars-details-2023-12-26-909050 . 28 December 2023 . 27 December 2023 . .
    136. Web site: 5 April 2023 . Loksabha Q&A . dead . https://web.archive.org/web/20230406052049/https://pqals.nic.in/annex/1711/AU5386.pdf . 6 April 2023 . .
    137. Web site: A mix of young and middle-aged people will train for Gaganyaan . The Week . en . 20 March 2021 . 28 January 2020 . https://web.archive.org/web/20200128073908/https://www.theweek.in/theweek/current/2020/01/24/a-mix-of-young-and-middle-aged-people-will-train-for-gaganyaan.html . live.
    138. Web site: domain-b.com : American astronautics society award for Chandrayaan-1 team . 12 June 2015 . https://web.archive.org/web/20150923215805/http://www.domain-b.com/aero/aero_general/20090901_chandrayaan1.html . 23 September 2015 . live.
    139. News: Chandrayaan-1 wins global award . 30 November 2008 . Tribune News Service . 2 February 2015 . Choudhury, Shubhadeep . Bangalore . https://web.archive.org/web/20140808030908/http://www.tribuneindia.com/2008/20081201/nation.htm#14 . 8 August 2014 . live.
    140. Web site: NSS awards for 2009 . National Space Society . 2 February 2015 . https://web.archive.org/web/20150202011649/http://www.nss.org/awards/2009.html . 2 February 2015 . live.
    141. Web site: NASA's Lunar Impact Mission Honored by National Space Society . National Aeronautics and Space Administration . 17 June 2010 . 2 February 2013 . Hoover, Rachel . https://web.archive.org/web/20130109115404/http://www.nasa.gov/centers/ames/news/features/2010/lcross_award.html . 9 January 2013 . live.
    142. News: India launches second Moon mission . 22 July 2019 . British Broadcasting Corporation . 23 July 2019 . live . https://web.archive.org/web/20190822092132/https://www.bbc.com/news/world-asia-india-49032603 . 22 August 2019 . en-GB.
    143. News: Chandrayaan-2 launch put off: India, Israel in lunar race for 4th position . Singh . Surendra . 5 August 2018 . The Times of India . 15 August 2018 . live . https://web.archive.org/web/20180819060901/https://timesofindia.indiatimes.com/india/chandrayaan-2-launch-put-off-india-israel-in-lunar-race-for-4th-position/articleshow/65275012.cms . 19 August 2018 . Times News Network.
    144. Web site: India Successfully Launches Chandrayaan-2, Aims to Become First to Probe Lunar South Pole . News18 . 23 July 2019 . live . https://web.archive.org/web/20190723131504/https://www.news18.com/news/india/chandrayaan-2-launch-moon-mission-isro-live-less-than-two-hours-to-go-for-indias-second-date-with-the-moon-2240201.html . 23 July 2019 . 23 July 2019.
    145. Web site: NASA – NSSDCA – Spacecraft – Details . nssdc.gsfc.nasa.gov . live . https://web.archive.org/web/20190729172632/https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=CHANDRYN2 . 29 July 2019 . 23 July 2019.
    146. Web site: Chandrayaan2 Home – ISRO . www.isro.gov.in . live . https://web.archive.org/web/20190729041910/https://www.isro.gov.in/chandrayaan2-home . 29 July 2019 . 23 July 2019.
    147. https://www.theweek.in/news/sci-tech/2019/11/16/how-did-chandrayaan-2-fail-isro-answer.html How did Chandrayaan 2 fail? ISRO finally has the answer.
    148. Web site: Chandrayaan2 Latest updates – ISRO . www.isro.gov.in . 2 December 2019 . 4 September 2019 . https://web.archive.org/web/20190904002946/https://www.isro.gov.in/chandrayaan2-latest-updates . live.
    149. Web site: Dutt . Anonna . 4 January 2022 . ISRO targets Gaganyaan launch before Independence day, Chandrayaan 3 by mid-2023 . 7 January 2022 . . 7 January 2022 . https://web.archive.org/web/20220107190732/https://indianexpress.com/article/technology/science/isro-targets-gaganyaan-launch-before-august-15-7704957/ . live.
    150. Web site: 2023-08-23 . 'India, I reached my destination': ISRO confirms Chandrayaan 3's soft-landing on moon . 2023-08-23 . Moneycontrol . en . 29 August 2023 . https://web.archive.org/web/20230829155506/https://www.moneycontrol.com/news/trends/current-affairs/chandrayaan-3-soft-landing-on-moon-isro-india-11245841.html . live .
    151. News: India becomes first country to enter Mars' orbit on their first attempt . 24 September 2014 . Herald Sun . 24 September 2014 . 24 September 2014 . https://archive.today/20140924031128/http://www.heraldsun.com.au/technology/science/india-becomes-first-country-to-enter-mars-orbit-on-their-first-attempt/story-fnjwlbuf-1227068835676?nk=20dfb6bbe7f9267fcf8572967c544066 . live.
    152. News: India's Maiden Mars Mission Makes History . 24 September 2014 . dead . https://web.archive.org/web/20140925093532/http://www.btvin.com/videos/watch/8916/india%E2%80%99s-maiden-mars-mission-makes-history . 25 September 2014 . Bloomberg TV India.
    153. Web site: Mars Orbiter Spacecraft Successfully Inserted into Mars Orbit . ISRO . 22 July 2022 . 6 October 2014 . https://web.archive.org/web/20141006135353/http://www.isro.org/pressrelease/contents/PrintConfirmation.aspx?ReleasedDate=September%2024,%202014&Date=Sep24_2014 . dead.
    154. Web site: Mars Orbiter Mission Spacecraft . ISRO . 22 July 2022 . 5 February 2019 . https://web.archive.org/web/20190205233935/https://www.isro.gov.in/Spacecraft/mars-orbiter-mission-spacecraft . dead.
    155. Web site: Indian Space Research Organisation Mars Orbiter Programme Team Wins National Space Society's Space Pioneer Award for Science and Engineering . Brandt-Erichsen, David . 12 January 2015 . National Space Society . live . https://web.archive.org/web/20150202002327/http://blog.nss.org/?p=4622 . 2 February 2015 . 2 February 2015.
    156. News: ISRO Mars Orbiter Mission team Wins Space Pioneer Award . 14 January 2015 . 2 February 2015 . live . https://web.archive.org/web/20150202011731/http://www.ndtv.com/india-news/isro-mars-orbiter-mission-team-wins-space-pioneer-award-726885 . 2 February 2015 . NDTV . Washington, United States.
    157. News: Kumar . Chethan . 2024-08-01 . Scientists, Gaganyaan astronaut bat for Ladakh as Moon & Mars analogue research site . 2024-08-18 . The Times of India . 0971-8257.
    158. Web site: 4 May 2019 . India's first solar mission in 2020: Isro chairman . live . https://web.archive.org/web/20190705100844/https://timesofindia.indiatimes.com/city/madurai/indias-first-solar-mission-in-2020-isro-chairman/articleshow/69169011.cms . 5 July 2019 . 8 August 2019 . The Times of India . en.
    159. News: 13 February 2018 . After Mars, India aims for Sun now . 12 . Mail Today . Mail Today . live . 5 March 2019 . https://web.archive.org/web/20190306044940/http://epaper.mailtoday.in/c/26281749 . 6 March 2019.
    160. Web site: 9 June 2011 . After the Moon, ISRO eyes the sun . live . https://web.archive.org/web/20150927224137/http://www.ndtv.com/video/player/news/after-the-moon-isro-eyes-the-sun/201990 . 27 September 2015 . 12 June 2015.
    161. Web site: Aditya – L1 First Indian mission to study the Sun . dead . https://web.archive.org/web/20191210161048/https://www.isro.gov.in/aditya-l1-first-indian-mission-to-study-sun . 10 December 2019 . 22 July 2022 . ISRO.
    162. 6 January 2024 . Halo-Orbit Insertion of Aditya-L1 Successfully Accomplished . live . https://web.archive.org/web/20240118014614/https://www.isro.gov.in/halo-orbit-insertion-adtya-l1.html . 18 January 2024 . 6 January 2024 . www.isro.gov.in . ISRO .
    163. https://timesofindia.indiatimes.com/india/after-mars-venus-on-isros-planetary-travel-list/articleshow/69381185.cms After Mars, Venus on Isro's planetary travel list.
    164. News: Dutt . Anonna . New Delhi . Gaganyaan mission: Astronauts to undergo Isro module next year . 18 September 2020 . 20 March 2021 . 30 May 2022 . https://web.archive.org/web/20220530200914/https://www.hindustantimes.com/india-news/gaganyaan-mission-astronauts-to-undergo-isro-module-next-year/story-t4FPl0e2b7sLMgqyJ6QoyH.html . live.
    165. News: 30 May 2015 . ISRO developing heavy lift launch vehicles . The Hindi . Thiruvanantpuram . 21 March 2021 . 7 April 2021 . https://web.archive.org/web/20210407202204/https://www.thehindu.com/news/cities/Thiruvananthapuram/isro-developing-heavy-lift-launch-vehicles/article7262881.ece . live.
    166. Somanath . S. . 3 August 2020 . Indian Innovations in Space Technology: Achievements and Aspirations . live . https://web.archive.org/web/20200913095544/http://imgur.com/a/ffL2XRp . 13 September 2020 . 21 March 2021 . . imgur . Regional Science Centre and Planetarium, Calicut .
    167. News: MP . Sidhharth . 14 March 2021 . ISRO: Chandrayaan-3 launch by mid-2022, Mangalyaan-2 in definition stage . . Chennai . 21 March 2021 . 17 March 2021 . https://web.archive.org/web/20210317223434/https://www.wionews.com/india-news/isro-chandrayaan-3-launch-by-mid-2022-mangalyaan-2-in-definition-stage-370417 . live.
    168. News: 2023-06-08 . ISRO readies plan for next generation launch vehicle . en-IN . The Hindu . 2023-07-17 . 0971-751X . 17 July 2023 . https://web.archive.org/web/20230717081813/https://www.thehindu.com/sci-tech/science/isro-readies-plan-for-next-generation-launch-vehicle/article66946403.ece . live .
    169. News: Siddarth MP . 14 September 2021 . ISRO's new series of heavy-lift rockets to carry between 5-16 tonnes to GTO . WION . 15 September 2021 . 15 September 2021 . https://web.archive.org/web/20210915024552/https://www.wionews.com/science/isros-new-series-of-heavy-lift-rockets-to-carry-between-5-16-tonnes-to-gto-413107 . live.
    170. News: 2 January 2019 . ISRO Is Working on Two Competing Reusable Launcher Designs . Science Wire . 21 March 2021 . 13 April 2021 . https://web.archive.org/web/20210413203350/https://science.thewire.in/spaceflight/isro-is-working-on-two-competing-reusable-launch-vehicle-designs/ . live.
    171. News: Rajwi . Tiki . Futuristic Unmanned Space Shuttle Getting Final Touches . The New Indian Express . 20 May 2015 . 13 December 2017 . https://web.archive.org/web/20171214071440/http://www.newindianexpress.com/states/kerala/2015/may/20/Futuristic-Unmanned-Space-Shuttle-Getting-Final-Touches-763087.html . 14 December 2017 . live.
    172. News: Design process has been validated . 7 September 2018 . 30 May 2022 . https://web.archive.org/web/20220530200916/https://frontline.thehindu.com/ . live.
    173. Web site: ISRO Plans To Test ground Landing Of 'Desi' Space Shuttle By Year end . Kalinga TV . 7 October 2020 . 21 March 2021 . 13 April 2021 . https://web.archive.org/web/20210413203915/https://kalingatv.com/nation/isro-plans-to-test-ground-landing-of-its-space-shuttle-like-reusable-launch-vehicle/ . live.
    174. News: Why didn't the cryogenic engine ignite? . Subramanian . T. S. . 17 April 2010 . The Hindu . 21 March 2021 . 13 November 2012 . https://web.archive.org/web/20121113123805/http://www.thehindu.com/sci-tech/science/article399411.ece . live.
    175. News: ISRO to Test Electric Propulsion on Satellites . The New Indian Express . Tiki . Rajwi . 30 November 2015 . 21 March 2021 . 7 May 2016 . https://web.archive.org/web/20160507084803/http://www.newindianexpress.com/states/kerala/ISRO-to-Test-Electric-Propulsion-on-Satellites/2015/11/30/article3153565.ece . dead.
    176. News: GSAT-9 heralds cost-saving electric propulsion . The Hindu . D. S. . Madhumathi . 1 May 2017 . 21 March 2021 . 15 April 2021 . https://web.archive.org/web/20210415023332/https://www.thehindu.com/sci-tech/science/gsat-9-heralds-cost-saving-electric-propulsion/article18347912.ece . live.
    177. https://netfiles.uiuc.edu/mragheb/www/NPRE%20402%20ME%20405%20Nuclear%20Power%20Engineering/Radioisotopes%20Power%20Production.pdf NPE chapter 3 Radioisotope Power Generation
    178. Web site: Bansal . Nitansha . ISRO plans for nuclear energy use in space . live . 19 May 2021 . Observer Research Foundation . en-US . 18 May 2021 . https://web.archive.org/web/20210518140859/https://www.orfonline.org/expert-speak/isro-plans-for-nuclear-energy-use-in-space/.
    179. News: Laxman . Srinivas . 29 December 2023 . Nuclear sector set to power Indian space missions: Isro chief . live . https://web.archive.org/web/20240108154309/https://timesofindia.indiatimes.com/home/science/nuclear-sector-set-to-power-indian-space-missions-isro-chief/articleshow/106359396.cms . 8 January 2024 . 29 December 2023 . . 0971-8257 .
    180. News: Upadhyay . Bharat . 30 October 2023 . ISRO Is Working On This BIG Project To Secure India's Future Of Computing . live . https://web.archive.org/web/20231227135341/https://www.news18.com/tech/isro-is-working-on-this-big-project-to-secure-indias-future-of-computing-8639388.html . 27 December 2023 . 27 December 2023 . .
    181. 4th IPSC 2023 Inauguration . 2023-03-22 . 1:18:09.
    182. News: Singh . Surendra . 5 May 2022 . Isro to join race to Venus, eyes 2024 orbiter launch . live . https://web.archive.org/web/20221015123338/https://timesofindia.indiatimes.com/home/science/isro-to-join-race-to-venus-eyes-2024-orbiter-launch/articleshow/91326428.cms . 15 October 2022 . 17 January 2024 . . Times News Network .
    183. Web site: Hoshino . Takeshi . Ohtake . Makiko . Karouji . Yuzuru . Shiraishi . Hiroaki . May 2019 . Current status of a Japanese lunar polar exploration mission . live . https://web.archive.org/web/20190725143619/https://confit.atlas.jp/guide/event-img/jpgu2019/PPS08-15/public/pdf?type=in&lang=ja . 25 July 2019 . 10 March 2021 .
    184. News: Kuthunur . Sharmila . 18 October 2023 . India wants to land astronauts on the moon in 2040 . live . https://web.archive.org/web/20240223092227/https://www.space.com/india-land-astronauts-moon-2040 . 23 February 2024 . 15 December 2023 . .
    185. Web site: Rajya Sabha Unstarred Question No. 2955 . https://web.archive.org/web/20200913095719/https://imgur.com/a/SXXyGzC . dead . 13 September 2020 . Imgur.com . 23 July 2022.
    186. News: Mangalyaan-2 will be an orbiter mission: ISRO chief K Sivan . The Economic Times . 12 August 2021 . 12 August 2021 . https://web.archive.org/web/20210812102845/https://economictimes.indiatimes.com/news/science/indias-next-mars-mission-likely-to-be-an-orbiter/articleshow/81111742.cms . live.
    187. Web site: ISRO gears up for Venus mission, invites proposals from scientists . 25 April 2017 . . . 23 January 2018 . https://web.archive.org/web/20170618192208/http://indianexpress.com/article/technology/science/isro-invites-scientists-from-across-country-for-venus-mission-4627259/ . 18 June 2017 . live.
    188. News: India planning Venus mission . Srinivas Laxman . 17 February 2012 . 24 July 2012 . https://web.archive.org/web/20120218204750/http://articles.timesofindia.indiatimes.com/2012-02-17/hyderabad/31070866_1_venus-mission-chandrayaan-1-isro . 18 February 2012 . . dead.
    189. Web site: After Mars, Isro aims for Venus probe in 2–3 years . The Asian Age . dead . https://web.archive.org/web/20150530141559/http://www.asianage.com/india/after-mars-isro-aims-venus-probe-2-3-years-335 . 30 May 2015 . 12 June 2015.
    190. Web site: Department of Space . . 18 January 2018 . https://web.archive.org/web/20171215111518/http://indiabudget.gov.in/ub2017-18/eb/sbe91.pdf . 15 December 2017 . dead.
    191. Web site: Announcement of Opportunity (AO) for Space Based Experiments to Study Venus . 19 April 2017 . ISRO.gov.in . 13 September 2017 . https://web.archive.org/web/20170913183153/http://www.isro.gov.in/announcement-of-opportunity-ao-space-based-experiments-to-study-venus . 13 September 2017 . live.
    192. News: ISRO to launch its Venus mission in 2025, France to take part . 1 October 2020 . PTI . Livemint . 30 September 2020 . 31 October 2020 . https://web.archive.org/web/20201031090613/https://www.livemint.com/science/news/isro-to-launch-its-venus-mission-in-2025-france-to-take-part-11601476329074.html . live.
    193. Web site: After Mars, ISRO looks to conquer Venus & Jupiter . live . https://web.archive.org/web/20170108002328/http://bangaloremirror.indiatimes.com/bangalore/others/After-Mars-ISRO-looks-to-conquer-Venus-Jupiter/articleshow/56342122.cms . 8 January 2017 . 7 January 2017 . Bangalore Mirror.
    194. News: Laxman . Srinivas . ISRO plans new propulsion for deep space missions . The Times of India . 20 March 2021 . 10 February 2021 . https://web.archive.org/web/20210210194257/http://timesofindia.indiatimes.com/india/isro-plans-new-propulsion-for-deep-space-missions/articleshow/80801653.cms . live.
    195. News: ISRO plans to launch India's 2nd space observatory . https://web.archive.org/web/20190201224032/https://timesofindia.indiatimes.com//home/science/isro-plans-to-launch-indias-2nd-space-observatory/articleshow/62975636.cms . dead . 1 February 2019 . Surendra Singh . 19 February 2018 . Times of India . 20 March 2021.
    196. Web site: Exoworlds to take off in 2025: Kasturirangan . 5 December 2019 . Deccan Herald . en . 6 December 2019 . 6 December 2019 . https://web.archive.org/web/20191206074439/https://www.deccanherald.com/state/mangaluru/exoworlds-to-take-off-in-2025-kasturirangan-782783.html . live.
    197. Web site: Seventh convocation address IIST . 5 July 2019 . live . https://web.archive.org/web/20191206054815/https://www.iist.ac.in/sites/default/files/library/7thconvocationspeech2019.pdf . 6 December 2019 . 6 December 2019.
    198. Web site: RAJYA SABHA UNSTARRED QUESTION NO.119 TO BE ANSWERED ON THURSDAY, NOVEMBER 22, 2012 DESIGNING OF GEO IMAGING SATELLITE . Isro.gov.in . July 23, 2022.
    199. News: 17 December 2018 . ISRO to launch two satellites under IDRSS: All about it . live . https://web.archive.org/web/20191006172004/https://www.indiatoday.in/education-today/gk-current-affairs/story/satellites-isro-idrss-1411248-2018-12-17 . 6 October 2019 . 5 October 2019 . .
    200. Web site: Space Applications Centre: 'Aeronomy satellite in advanced planning stage' . . 23 October 2018 . 18 July 2019 . https://web.archive.org/web/20190109064936/https://timesofindia.indiatimes.com/city/ahmedabad/aeronomy-satellite-in-advanced-planning-stage/articleshow/66323217.cms . 9 January 2019 . live.
    201. Kumar . Suresh . Hyperspectral Remote Sensing of Salt-affected Soils : Potential & Future Prospects . Central Soil Salinity Research Institute, Karnal, India . Golden Jubilee International Salinity Conference (GJISC-2019) . 11 March 2019 . 24 July 2021 . 30 May 2022 . https://web.archive.org/web/20220530200919/https://www.researchgate.net/publication/331648387_Hyperspectral_Remote_Sensing_of_Salt-affected_Soils_Potential_Future_Prospects . live.
    202. Web site: Amendment 33: A.27 NISAR Research and Applications Science Team Deferred to ROSES-25 . . 18 July 2024 . 28 July 2024.
    203. Web site: Mission Concept . Jet Propulsion Laboratory . 22 July 2022 . 5 July 2022 . https://web.archive.org/web/20220705214244/https://nisar.jpl.nasa.gov/mission/mission-concept/ . live .
    204. News: 28 December 2023 . Isro to launch 50 satellites in 5 years to boost India's intelligence-gathering capabilities; Aditya-L1 set to reach Lagrange Point on January 6: Isro chief S Somnath . live . https://web.archive.org/web/20240108154310/https://timesofindia.indiatimes.com/home/science/aditya-l1-set-to-reach-lagrange-point-on-january-6-isro-chief-s-somnath/articleshow/106356577.cms . 8 January 2024 . 30 December 2023 . . 0971-8257 .
    205. News: Singh . Surendra . 30 December 2023 . Isro plans 50 AI-based surveillance satellites . live . https://web.archive.org/web/20240108143328/https://timesofindia.indiatimes.com/india/isro-plans-50-ai-based-surveillance-satellites/articleshow/106390103.cms . 8 January 2024 . 31 December 2023 . . 0971-8257 .
    206. News: 10 October 2023 . Second spaceport of ISRO to be set up at Kulasekarapattinam in Tamil Nadu . live . https://web.archive.org/web/20240106045828/https://www.thehindu.com/sci-tech/science/second-spaceport-of-isro-to-be-set-up-at-kulasekarapattinam-in-tamil-nadu/article67403573.ece . 6 January 2024 . 6 January 2023 . .
    207. Web site: India goes to war in space . 18 June 2008 . 2 July 2010 . https://web.archive.org/web/20100811041736/http://atimes.com/atimes/South_Asia/JF18Df01.html . 11 August 2010 . dead.
    208. Web site: India in aerospace defence plan . . 28 January 2007 . 24 April 2009 . https://web.archive.org/web/20090929001552/http://news.bbc.co.uk/2/hi/south_asia/6307875.stm . 29 September 2009 . live.
    209. Web site: India Begins Work on Space Weapons Command . https://archive.today/20070709071654/http://www.spacewar.com/reports/India_Begins_Work_On_Space_Weapons_Command.html . dead . 9 July 2007 . SpaceDaily . 12 April 2006 . 24 April 2009.
    210. https://timesofindia.indiatimes.com/india/why-isros-gsat-7a-launch-is-important-for-iaf/articleshow/67153347.cms Why Isro's Gsat-7A launch is important for the Indian Air Force
    211. Web site: India's Tech Roadmap Points to Small Sats, Space Weapons . https://archive.today/20150121220451/http://archive.defensenews.com/article/20130910/DEFREG03/309100007/India-s-Tech-Roadmap-Points-Small-Sats-Space-Weapons . 21 January 2015 . dead.
    212. Web site: IAF to induct 214 fifth generation fighter jets . https://web.archive.org/web/20120703035131/http://ibnlive.in.com/news/iaf-to-induct-214-fifth-generation-fighter-jets/189940-3.html . 3 July 2012 . dead.
    213. News: GSAT-7A, ISRO's 'angry bird', takes to the skies . Rohit . T. k . 19 December 2018 . The Hindu . 24 July 2019 . en-IN . 0971-751X . 1 June 2020 . https://web.archive.org/web/20200601153940/https://www.thehindu.com/sci-tech/science/isro-successfully-launches-gsat-7a/article25781226.ece . live.
    214. News: ISRO launches radar imaging observation satellite RISAT-2B . 22 May 2019 . The Hindu . 24 July 2019 . Special Correspondent . en-IN . 0971-751X . https://web.archive.org/web/20190522193100/https://www.thehindu.com/sci-tech/science/isro-launches-radar-imaging-observation-satellite-risat-2b/article27211076.ece . 22 May 2019 . live.
    215. News: India gets surveillance satellite . D.s . Madhumathi . 1 April 2019 . The Hindu . 24 July 2019 . en-IN . 0971-751X . https://web.archive.org/web/20190605075446/https://www.thehindu.com/sci-tech/technology/pslv-isro-emisat-launch-from-sriharikota-on-april-1/article26699077.ece . 5 June 2019 . live.
    216. Mistry, 94–95
    217. Bhaskaranarayana, 1744
    218. Sen, 490
    219. Web site: Space Spin Offs From ISRO . ISRO . 22 March 2021 . 13 April 2021 . https://web.archive.org/web/20210413203903/https://www.isro.gov.in/isro-technology-transfer/space-spin-offs-isro . live.
    220. Web site: Spin-off benefits of the Indian Space Programme . Sreerekha . U . 20 June 2019 . live . https://web.archive.org/web/20190920224822/http://www.unoosa.org/documents/pdf/copuos/2019/copuos2019tech39E.pdf . 20 September 2019 . 22 March 2021.
    221. Web site: ISRO – International co-operation . Indian Space Research Organisation . 27 February 2015 . https://web.archive.org/web/20150212234842/http://www.isro.gov.in/international-cooperation . 12 February 2015 . live.
    222. Bhardwaj . Anil . Barabash . Stas . Futaana . Yoshifumi . Kazama . Yoichi . Asamura . Kazushi . McCann . David . Sridharan . R. . Holmstrom . Mats . Wurz . Peter . Lundin . Rickard . Low energy neutral atom imaging on the Moon with the SARA instrument aboard Chandrayaan-1 mission . Journal of Earth System Science . December 2005 . 114 . 6 . 749–760 . 10.1007/BF02715960 . 2005JESS..114..749B . 55554166 . 21 March 2021 . 23 April 2021 . https://web.archive.org/web/20210423110307/https://www.ias.ac.in/jessci/dec2005/ilc-21.pdf . live.
    223. News: 20 March 2021 . India, France working on third joint space mission: ISRO Chairman . The Hindu . 22 March 2021 . 21 March 2021 . https://web.archive.org/web/20210321150341/https://www.thehindu.com/sci-tech/science/india-france-working-on-third-joint-space-mission-isro-chairman/article34115470.ece . live.
    224. Web site: Episode 82: JAXA and International Collaboration with Professor Fujimoto Masaki . Astro Talk UK . 4 January 2019 . 10 March 2021 . 16 January 2021 . https://web.archive.org/web/20210116033628/https://astrotalkuk.org/episode-82-jaxa-and-international-collaboration-with-professor-fujimoto-masaki/ . live.
    225. Web site: U.S., India to Collaborate on Mars Exploration, Earth-Observing Mission . NASA official website . 30 September 2014 . National Aeronautics and Space Administration . 1 October 2014 . https://web.archive.org/web/20140930211905/http://www.nasa.gov/press/2014/september/us-india-to-collaborate-on-mars-exploration-earth-observing-mission/ . 30 September 2014 . live.
    226. Web site: Satellite Aided Search and Rescue . ISRO . 22 July 2022 . 6 August 2022 . https://web.archive.org/web/20220806183209/https://www.isro.gov.in/applications/satellite-aided-search-and-rescue . dead.
    227. Web site: Center for Space Science and Technology Education in Asia and the Pacific (CSSTEAP) . . 22 July 2022 . 22 July 2022 . https://web.archive.org/web/20220722171916/https://www.un-spider.org/center-space-science-and-technology-education-asia-and-pacific-cssteap . live .
    228. Web site: Update on ISRO's International Cooperation . Kunhikrishnan . P. . 20 June 2019 . 10 . 30 June 2019 . https://web.archive.org/web/20190630161422/http://www.unoosa.org/documents/pdf/copuos/2019/copuos2019tech44E.pdf . 30 June 2019 . live.
    229. News: 28 June 2019 . V orbital'nuyu gruppirovku stran BRIKS voidut pyat' kosmicheskikh apparatov . ru:В орбитальную группировку стран БРИКС войдут пять космических аппаратов . Five spacecraft will join the orbital grouping of BRICS countries . live . https://web.archive.org/web/20190707194515/https://ria.ru/20190628/1555995527.html . 7 July 2019 . 30 June 2019 . . Moscow . ru .
    230. Web site: 23 October 2022 . List of International Customer Satellites Launched by ISRO . live . https://web.archive.org/web/20221024134415/https://www.isro.gov.in/media_isro/pdf/ForeignSatellites/381_foreign_satellites.pdf . 24 October 2022 . 24 October 2022 . ISRO .
    231. Web site: Missions accomplished . 2022-10-24 . www.isro.gov.in . 14 October 2022 . https://web.archive.org/web/20221014133052/https://www.isro.gov.in/Mission.html . live .
    232. Web site: List of University / Academic Institute Satellites – ISRO . www.isro.gov.in . 4 December 2019 . 19 August 2019 . https://web.archive.org/web/20190819011224/https://www.isro.gov.in/spacecraft/list-of-university-academic-institute-satellites . live.
    233. Web site: Economic Survey 2021–22 Statistical Appendix . live . https://web.archive.org/web/20220511132241/https://www.indiabudget.gov.in/economicsurvey/doc/Statistical-Appendix-in-English.pdf . 11 May 2022 . 29 May 2022 . . 17 . Table 1.6: Components of Gross Domestic Product at Current Prices .
    234. Web site: Archive of Demands for Grants . live . https://web.archive.org/web/20240226072734/https://www.isro.gov.in/archive_of_demands_grants.html . 26 February 2024 . 29 May 2022 . ISRO .
    235. Web site: Detailed Demands of Grants of Department of Space for 1973–74 . live . https://web.archive.org/web/20240226072754/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1973_74.pdf . 26 February 2024 . 30 May 2022 . . 06 .
    236. Web site: Detailed Demands of Grants of Department of Space for 1974–75 . live . https://web.archive.org/web/20240226072900/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1974_75.pdf . 26 February 2024 . 30 May 2022 . .
    237. Web site: Detailed Demands of Grants of Department of Space for 1975–76 . live . https://web.archive.org/web/20240226072909/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1975_76.pdf . 26 February 2024 . 30 May 2022 . .
    238. Web site: Detailed Demands of Grants of Department of Space for 1976–77 . live . https://web.archive.org/web/20230311150735/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1976_77.pdf . 11 March 2023 . 30 May 2022 . . 27 .
    239. Web site: Detailed Demands of Grants of Department of Space for 1977–78 . live . https://web.archive.org/web/20240226072807/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1977_78.pdf . 26 February 2024 . 30 May 2022 . . 32 .
    240. Web site: Detailed Demands of Grants of Department of Space for 1979–80 . live . https://web.archive.org/web/20240226072837/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1979_80.pdf . 26 February 2024 . 30 May 2022 . . 33 .
    241. Web site: Detailed Demands of Grants of Department of Space for 1980–81 . live . https://web.archive.org/web/20240226072811/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1980_81.pdf . 26 February 2024 . 30 May 2022 . . 36 .
    242. Web site: Detailed Demands of Grants of Department of Space for 1981–82 . live . https://web.archive.org/web/20240226072831/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1981_82.pdf . 26 February 2024 . 30 May 2022 . . 36 .
    243. Web site: Detailed Demands of Grants of Department of Space for 1982–83 . live . https://web.archive.org/web/20240226072833/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1982_83.pdf . 26 February 2024 . 30 May 2022 . .
    244. Web site: Detailed Demands of Grants of Department of Space for 1983–84 . live . https://web.archive.org/web/20240226073036/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1983_84.pdf . 26 February 2024 . 30 May 2022 . .
    245. Web site: Detailed Demands of Grants of Department of Space for 1984–85 . live . https://web.archive.org/web/20230318192646/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1984_85.pdf . 18 March 2023 . 30 May 2022 . . 48 .
    246. Web site: Detailed Demands of Grants of Department of Space for 1985–86 . live . https://web.archive.org/web/20240226072829/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1985_86.pdf . 26 February 2024 . 30 May 2022 . . 53 .
    247. Web site: Detailed Demands of Grants of Department of Space for 1986–87 . live . https://web.archive.org/web/20240226072836/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1986_87.pdf . 26 February 2024 . 30 May 2022 . . 49 .
    248. Web site: Detailed Demands of Grants of Department of Space for 1987–88 . live . https://web.archive.org/web/20240226072824/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1987_88.pdf . 26 February 2024 . 30 May 2022 . . 45 .
    249. Web site: Detailed Demands of Grants of Department of Space for 1988–89 . live . https://web.archive.org/web/20240226073042/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1988_89.pdf . 26 February 2024 . 30 May 2022 . . 48 .
    250. Web site: Detailed Demands of Grants of Department of Space for 1989–90 . live . https://web.archive.org/web/20240226073104/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1989_90.pdf . 26 February 2024 . 30 May 2022 . . 50 .
    251. Web site: Detailed Demands of Grants of Department of Space for 1990–91 . live . https://web.archive.org/web/20230329075451/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1990_91.pdf . 29 March 2023 . 30 May 2022 . . 48 .
    252. Web site: Detailed Demands of Grants of Department of Space for 1991–92 . live . https://web.archive.org/web/20240226073040/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1991_92.pdf . 26 February 2024 . 30 May 2022 . . 50 .
    253. Web site: Detailed Demands of Grants of Department of Space for 1992–93 . live . https://web.archive.org/web/20240226073103/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1992_93.pdf . 26 February 2024 . 30 May 2022 . . 52 .
    254. Web site: 1999–2000 Expenditure Budget Vol. I: Trends in Expenditure . live . https://web.archive.org/web/20220520165656/https://www.indiabudget.gov.in/budget_archive/ub1999-2000/eb/trend.pdf . 20 May 2022 . 30 May 2022 . .
    255. Web site: Detailed Demands of Grants of Department of Space for 1993–94 . live . https://web.archive.org/web/20240226072855/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1993_94.pdf . 26 February 2024 . 30 May 2022 . . 54 .
    256. Web site: Detailed Demands of Grants of Department of Space for 1994–95 . live . https://web.archive.org/web/20240226072813/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1994_95.pdf . 26 February 2024 . 30 May 2022 . . 51 .
    257. Web site: Detailed Demands of Grants of Department of Space for 1995–96 . live . https://web.archive.org/web/20240226072849/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1995_96.pdf . 26 February 2024 . 30 May 2022 . . 65 .
    258. Web site: Detailed Demands of Grants of Department of Space for 1996–97 . live . https://web.archive.org/web/20240226072843/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1996_97.pdf . 26 February 2024 . 30 May 2022 . . 38 .
    259. Web site: 2003–2004 Expenditure Budget Vol. I: Trends in Expenditure . live . https://web.archive.org/web/20220520170435/https://www.indiabudget.gov.in/budget_archive/ub2003-04/eb/trend.pdf . 20 May 2022 . 30 May 2022 . .
    260. Web site: Detailed Demands of Grants of Department of Space for 1997–98 . live . https://web.archive.org/web/20240226072841/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1997_98.pdf . 26 February 2024 . 30 May 2022 . . 38 .
    261. Web site: Detailed Demands of Grants of Department of Space for 1998–99 . live . https://web.archive.org/web/20240226072808/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1998_99.pdf . 26 February 2024 . 30 May 2022 . . 38 .
    262. Web site: Detailed Demands of Grants of Department of Space for 1999–2000 . live . https://web.archive.org/web/20240226072821/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_1999_2000.pdf . 26 February 2024 . 30 May 2022 . . 40 .
    263. Web site: Detailed Demands of Grants of Department of Space for 2000–2001 . live . https://web.archive.org/web/20240226072837/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2000_2001.pdf . 26 February 2024 . 30 May 2022 . . 41 .
    264. Web site: Expenditure Budget Vol. I, 2007–2008: Trends in Expenditure . live . https://web.archive.org/web/20220530200920/https://www.indiabudget.gov.in/budget_archive/ub2007-08/eb/trend.pdf . 30 May 2022 . 30 May 2022 . .
    265. Web site: Detailed Demands of Grants of Department of Space for 2001–2002 . live . https://web.archive.org/web/20240226072903/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2001_2002.pdf . 26 February 2024 . 30 May 2022 . . 41 .
    266. Web site: Detailed Demands of Grants of Department of Space for 2002–2003 . live . https://web.archive.org/web/20230328063237/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2002_2003.pdf . 28 March 2023 . 30 May 2022 . . 47 .
    267. Web site: Detailed Demands of Grants of Department of Space for 2003–2004 . live . https://web.archive.org/web/20240226072809/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2003_2004.pdf . 26 February 2024 . 30 May 2022 . . 41 .
    268. Web site: Expenditure Budget Vol. I, 2010–2011: Trends in Expenditure . live . https://web.archive.org/web/20220520170234/https://www.indiabudget.gov.in/budget_archive/ub2010-11/eb/trend.pdf . 20 May 2022 . 30 May 2022 . .
    269. Web site: Detailed Demands of Grants of Department of Space for 2004–2005 . live . https://web.archive.org/web/20230311134754/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2004_2005.pdf . 11 March 2023 . 30 May 2022 . . 42 .
    270. Web site: Detailed Demands of Grants of Department of Space for 2005–2006 . live . https://web.archive.org/web/20240226072843/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2005_2006.pdf . 26 February 2024 . 30 May 2022 . . 48 .
    271. Web site: Detailed Demands of Grants of Department of Space for 2006–2007 . live . https://web.archive.org/web/20230311141857/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2006_2007.pdf . 11 March 2023 . 30 May 2022 . . 48 .
    272. Web site: Detailed Demands of Grants of Department of Space for 2007–2008 . live . https://web.archive.org/web/20240226072913/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2007_2008.pdf . 26 February 2024 . 30 May 2022 . . 53 .
    273. Web site: Detailed Demands of Grants of Department of Space for 2008–2009 . live . https://web.archive.org/web/20240226072759/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2008_2009.pdf . 26 February 2024 . 30 May 2022 . . 50 .
    274. Web site: Expenditure Budget Vol. I, 2015–2016: Trends in Expenditure . live . https://web.archive.org/web/20220520165527/https://www.indiabudget.gov.in/budget2015-2016/ub2015-16/eb/trend.pdf . 20 May 2022 . 30 May 2022 . .
    275. Web site: Detailed Demands of Grants of Department of Space for 2009–2010 . live . https://web.archive.org/web/20240226072823/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2009_2010.pdf . 26 February 2024 . 30 May 2022 . . 52 .
    276. Web site: Detailed Demands of Grants of Department of Space for 2010–2011 . live . https://web.archive.org/web/20240226072805/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2010_2011.pdf . 26 February 2024 . 30 May 2022 . . 46 .
    277. Web site: Detailed Demands of Grants of Department of Space for 2011–2012 . live . https://web.archive.org/web/20240226072802/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2011_2012.pdf . 26 February 2024 . 30 May 2022 . . 46 .
    278. Web site: Detailed Demands of Grants of Department of Space for 2012–2013 . live . https://web.archive.org/web/20240226072817/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2012_2013.pdf . 26 February 2024 . 30 May 2022 . . 43 .
    279. Web site: Detailed Demands of Grants of Department of Space for 2013–2014 . live . https://web.archive.org/web/20240226072906/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2013_2014.pdf . 26 February 2024 . 30 May 2022 . . 49 .
    280. Web site: Detailed Demands of Grants of Department of Space for 2014–2015 . live . https://web.archive.org/web/20240226072815/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2014_2015.pdf . 26 February 2024 . 30 May 2022 . . 53 .
    281. Web site: Detailed Demands of Grants of Department of Space for 2015–2016 . live . https://web.archive.org/web/20240226072916/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2015_2016.pdf . 26 February 2024 . 30 May 2022 . . 58 .
    282. Web site: Detailed Demands of Grants of Department of Space for 2016–2017 . live . https://web.archive.org/web/20240226072903/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2016_2017.pdf . 26 February 2024 . 30 May 2022 . . 74 .
    283. Web site: Budget at a Glance 2016–2017 . live . https://web.archive.org/web/20220520182832/https://www.indiabudget.gov.in/budget2016-2017/ub2016-17/bag/bag11.pdf . 20 May 2022 . 30 May 2022 . . 3 .
    284. Web site: Detailed Demands of Grants of Department of Space for 2017–2018 . live . https://web.archive.org/web/20240226072827/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2017_2018.pdf . 26 February 2024 . 30 May 2022 . . 83 .
    285. Web site: Budget at a Glance 2017–2018 . live . https://web.archive.org/web/20220309024549/https://www.indiabudget.gov.in/budget2017-2018/ub2017-18/bag/bag1.pdf . 9 March 2022 . 30 May 2022 . . 3 .
    286. Web site: Detailed Demands of Grants of Department of Space for 2018–2019 . live . https://web.archive.org/web/20240226072920/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2018_2019.pdf . 26 February 2024 . 30 May 2022 . . 76 .
    287. Web site: Budget at a Glance 2018–2019 . live . https://web.archive.org/web/20220520182421/https://www.indiabudget.gov.in/budget2018-2019/ub2018-19/bag/bag1.pdf . 20 May 2022 . 30 May 2022 . . 3 .
    288. Web site: Detailed Demands of Grants of Department of Space for 2019–2020 . live . https://web.archive.org/web/20240226072819/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2019_2020.pdf . 26 February 2024 . 30 May 2022 . . 91 .
    289. Web site: Budget at a Glance 2019–2020 . live . https://web.archive.org/web/20220520182237/https://www.indiabudget.gov.in/budget2019-20/doc/Budget_at_Glance/bag1.pdf . 20 May 2022 . 30 May 2022 . . 3 .
    290. Web site: Detailed Demands of Grants of Department of Space for 2020–2021 . live . https://web.archive.org/web/20230311145014/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2020_2021.pdf . 11 March 2023 . 30 May 2022 . . 93 .
    291. Web site: Budget at a Glance 2020–2021 . live . https://web.archive.org/web/20220520181151/https://www.indiabudget.gov.in/budget2020-21/doc/Budget_at_Glance/bag1.pdf . 20 May 2022 . 30 May 2022 . . 3 .
    292. Web site: Detailed Demands of Grants of Department of Space for 2021–22 . live . https://web.archive.org/web/20240226081032/https://www.isro.gov.in/media_isro/pdf/RTI/DDG_2021_2022.pdf . 26 February 2024 . 30 May 2022 . . 94 .
    293. Web site: Budget at a Glance 2021–2022 . live . https://web.archive.org/web/20220401072554/https://www.indiabudget.gov.in/budget2021-22/doc/Budget_at_Glance/budget_at_a_glance.pdf . 1 April 2022 . 30 May 2022 . . 3 .
    294. Web site: Detailed Demands of Grants of Department of Space for 2022–23 . live . https://web.archive.org/web/20240226073052/https://www.isro.gov.in/media_isro/pdf/RTI/ddg_2022_23.pdf . 26 February 2024 . 30 May 2022 . . 97 .
    295. Web site: Budget at a Glance 2022–2023 . live . https://web.archive.org/web/20220331124734/https://www.indiabudget.gov.in/doc/Budget_at_Glance/budget_at_a_glance.pdf . 31 March 2022 . 30 May 2022 . . 5 .
    296. Web site: 1 February 2023 . Components of Gross Domestic Product at Current Prices . live . https://web.archive.org/web/20230222173837/https://www.indiabudget.gov.in/economicsurvey/doc/stat/tab16.pdf . 22 February 2023 . . 3 .
    297. Web site: 1 February 2023 . Expeniture Budget 2023–2024 . live . https://web.archive.org/web/20230201114025/https://www.indiabudget.gov.in/doc/eb/allsbe.pdf . 1 February 2023 . . 334 .
    298. News: Another spectrum scam hits govt, this time from ISRO . Thakur . Pradeep . 8 February 2011 . . 23 January 2018 . New Delhi . https://web.archive.org/web/20190727213455/https://timesofindia.indiatimes.com/india/Another-spectrum-scam-hits-govt-this-time-from-ISRO/articleshow/7445139.cms . 27 July 2019 . live.
    299. News: Behind the S-band spectrum scandal . The Hindu . 28 September 2011 . 6 February 2015 . https://web.archive.org/web/20140219053426/http://www.thehindu.com/opinion/editorial/behind-the-sband-spectrum-scandal/article1200374.ece . 19 February 2014 . live.
    300. News: Bureau . ET . Devas Multimedia-Antrix deal: A timeline of ongoing tussle . 22 July 2022 . . 20 January 2022 . 22 July 2022 . https://web.archive.org/web/20220722172031/https://economictimes.indiatimes.com/industry/telecom/telecom-news/devas-multimedia-steps-up-the-offensive-against-india-a-timeline-of-ongoing-tussle/articleshow/88974462.cms . live .
    301. Web site: antrix-devas-news-lalit-shastri . Newsroom24x7 . 24 May 2016 . https://web.archive.org/web/20150519214523/http://newsroom24x7.com/2015/03/20/2862/antrix-devas-news-lalit-shastri/#main . 19 May 2015 . live . 20 March 2015.
    302. Web site: Antrix Devas and the second generation scam . The New Indian Express . 22 August 2013 . 6 February 2015 . Jethmalani, Ram . New Delhi . https://web.archive.org/web/20150206055725/http://www.newindianexpress.com/nation/Antrix-Devas-and-the-second-generation-scam/2013/08/22/article1745659.ece . 6 February 2015 . dead.
    303. News: CBI registers case in the huge Antrix-Devas scam . 16 May 2015 . Newsroom24x7.com . https://web.archive.org/web/20150518104746/http://newsroom24x7.com/2015/03/18/cbi-registers-case-in-the-huge-antrix-devas-scam/ . 18 May 2015 . live.
    304. Web site: Antrix-Devas Agreement, national security, and CBI . Newsroom24x7 . 24 May 2016 . https://web.archive.org/web/20160503054604/https://newsroom24x7.com/2015/03/20/antrix-devas-agreement-national-security-and-cbi/ . 3 May 2016 . live . 20 March 2015.
    305. News: ISRO's Antrix to pay Rs 44.32 billion damages to Devas for unlawfully cancelling contract . 30 September 2015 . The Economic Times . 15 December 2015 . https://web.archive.org/web/20151105072143/http://economictimes.indiatimes.com/news/science/isros-antrix-to-pay-rs-4432-crore-damages-to-devas-for-unlawfully-cancelling-contract/articleshow/49158235.cms . 5 November 2015 . live.
    306. News: Antrix opposes Devas plea over tribunal award in HC . Mathur . Aneesha . 10 October 2015 . . 23 January 2018 . . https://web.archive.org/web/20151222153015/http://indianexpress.com/article/india/india-news-india/antrix-opposes-devas-plea-over-tribunal-award-in-hc/ . 22 December 2015 . live.

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