| Varthur | |
| Settlement Type: | Suburb |
| Pushpin Map: | India Karnataka |
| Pushpin Label Position: | right |
| Coordinates: | 12.9407°N 77.7466°W |
| Subdivision Type: | Country |
| Subdivision Name: | India |
| Subdivision Type1: | State |
| Subdivision Name1: | Karnataka |
| Subdivision Type2: | District |
| Subdivision Name2: | Bangalore |
| Subdivision Type3: | Metro |
| Subdivision Name3: | Bangalore |
| Governing Body: | BBMP |
| Unit Pref: | Metric |
| Population Total: | 46000 |
| Population As Of: | January 2015 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Kannada |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 560 087 |
| Area Code Type: | Telephone code |
| Area Code: | 91-(0)80-2853XXXX |
| Registration Plate: | KA 53 |
| Blank1 Name Sec1: | Lok Sabha constituency |
| Blank1 Info Sec1: | Bangalore Central |
| Blank2 Name Sec1: | Vidhan Sabha constituency |
| Blank2 Info Sec1: | Mahadevapura |
Varthur is a suburb situated in the Eastern periphery of Bangalore City and part of the internationally famous Whitefield township. Varthur is a Hobli and part of the Bruhat Bangalore Mahanagara Palike. Varthur was a Legislative Assembly in the state of Karnataka but was split into three legislative assemblies C.V.Raman Nagar, Mahadevapura and Krishnarajapura in the year 2008. It is also one of the wards of BBMP. It is located in South-Eastern Bangalore between old Airport road and Sarjapur road. Varthur is very close to ITPB.
There are many IT companies in Varthur Hobli. The head office of one of the largest IT companies, Wipro Technologies is situated here. Some other companies such as Cisco Systems, ARM, and Aricent Group, are situated in Varthur Hobli.
At Varthur, people celebrate Brahmarathotsava of Sri Chennaraya Swamy, which happens on the day of Ratha Saptami. It is one of the famous events that takes place in this area. Two days later is Karaga of Sri Draupathamma (Draupadi) at Sri Dharmaraya Swamy (Yudhishthira) temple, which happens at night and is visited by thousands of people from Varthur, Gunjur, Madhuranagara, Whitefield, Ramagondannahalli, Balagere, Sorahunase, Immadihalli, Harohalli, Muthsandra, and Kotur.
Varthur is located at . The river Dakshina Pinakini flows through Varthur.
The stretch starting from HAL old Airport road till Varthur via Marathahalli, Kundalahalli, Thubarahalli, Siddhapura, Ramagondanahalli, and Varthur Kodi is officially known as Varthur Main Road.
The lake ecosystem is an integral part of Bangalore, although unplanned urbanisation and industrialisation have led to the contamination of these water bodies. Varthur Lake, which has an area of 180.4ha is the second largest lake[1] in Bangalore city and also one of the most polluted[2] lakes in Bangalore. Its ecosystem is under continuous degradation because of sewage water from Bangalore entering the lake from Bellandur Lake, further upstream.
This is a man-made lake, built by the Ganga kings thousands of years ago[1] for agriculture and domestic uses but now the lake is receiving 40% of the sewage water from Bangalore for over 50 years resulting in eutrophication.