| Mumbai CSMT-Howrah AC Duronto Express | |
| Locale: | Maharashtra, Chhattisgarh, Odisha, Jharkhand & West Bengal |
| Operator: | South Eastern Railway |
| Start: | (CSMT) |
| End: | (HWH) |
| Distance: | 1968km (1,223miles) |
| Journeytime: | 26 hours 35 minutes |
| Frequency: | 4 days a week |
| Class: | AC First Class, AC 2 Tier, AC 3 Tier |
| Seating: | No |
| Sleeping: | Yes |
| Catering: | Available |
| Observation: | Large windows |
| Baggage: | Available |
| Otherfacilities: | Below the seats |
| Stock: | LHB coach |
| Trainnumber: | 12261 / 12262 |
| Speed: | 740NaN0 average including halts. |
The 12261 / 12262 Mumbai CSMT–Howrah AC Duronto Express is a Duronto Express train operating on the Mumbai–Howrah route.
Being the non-stop version of the Duronto train, it used to take the fewest intermediate stops for operational and technical purposes such as crew change, locomotive change, food pick-up, and water-filling. Later, most of operational (technical) stops were made commercial stops and stopagges are given in some state capitals and some state capitals are still non - stopping places.
Rake sharing is done with Pune-Howrah Duronto Express (12222/12221), Howrah-SMVT Bengaluru AC Superfast Express (22863/22864), Santragachi-Chennai Central AC Express (22807/22808), with a total of five Rakes primarily maintained at Santragachi Coaching Depot.[1]
12262 is the reverse composition of the above 12261.
B- Three Tier AC Sleeper/Third AC, A- Two Tier AC Sleeper/Second AC, H- AC First class cabins/First AC, PC-Pantry/Hot buffet car, EOG/GV-Generator van cum Guard van
It previously ran with WAP-4 loco of Howrah but now mostly gets WAP-7 loco of Santragachi. Before the conversion of Mumbai CSMT to from 1500 V DC to 25 kV AC, it was hauled by WCAM-3 of KYN shed for that section.
All its coaches are air conditioned LHB coach, capable of reaching 160 kmph. There is some confusing because according to Indian Railways Permanent Way Manual (IRPWM) on the Indian Railways website or Indian Railway Institute of Civil Engineering website, the BG (Broad Gauge) lines have been classified into six groups ‘A’ to ‘E’ on the basis of the future maximum permissible speeds but it may not be same as current speed.
The maximum permissible speed is 130 km/h but it is less in some parts of the journey as these parts are not fit for 130 km/h speed. The maximum permissible speed is 105 km/h between Mumbai CSMT and Kasara [2] where increasing up to 110 kmph in future is planned https://indianexpress.com/article/india/mission-raftaar-central-railway-to-increase-speed-limit-on-seven-key-routes-reduce-travel-time-by-four-hours-5215091/, 60 km/h between Kasara and Igatpuri,[3] either speed will be increased to 130 km/h from 110 kmph very soon or speed has already been increased recently like which has done for some trains earlier on Igatpuri - Nashik - Bhusaval - Akola - Badnera route https://cr.indianrailways.gov.in/view_detail.jsp?lang=0&id=0,4,268&dcd=8945&did=1700126878932B234318161F276C4447D5B3B95A2E5E1. 130 km/h on Badnera - Wardha route https://cr.indianrailways.gov.in/view_detail.jsp?lang=0&id=0,4,268&dcd=8973&did=1700634011477646D991B0EF7D0752FCDD24EE6B1BF1A, 130 kmph between Wardha and Nagpur https://m.facebook.com/photo.php?fbid=630626205916703&set=a.299496179029709&type=3 https://cr.indianrailways.gov.in/view_detail.jsp?lang=0&dcd=8945&id=0,4,268, 130 km/h in Nagpur - Durg route, https://secr.indianrailways.gov.in/uploads/files/1624886048545-Achive.pdf, 110 km/h in Durg - Jharsuguda which is a part of Nagpur - Jharsuguda route but the speed in this part is under process to be increased to 130 kmph,[4] 130 km/h in Jharsuguda - Tatanagar - Kharagpur - Andul route https://pib.gov.in/Pressreleaseshare.aspx?PRID=1788535 https://ser.indianrailways.gov.in/view_detail.jsp?lang=0&dcd=5303&id=0,4,423 https://pib.gov.in/PressReleseDetailm.aspx?PRID=1788535https://ser.indianrailways.gov.in/view_detail.jsp?lang=0&dcd=5061&id=0,4,423https://ser.indianrailways.gov.in/view_detail.jsp?lang=0&dcd=4813&id=0,4,423https://ser.indianrailways.gov.in/view_detail.jsp?lang=0&dcd=4463&id=0,4,423#:~:text=SOUTH%20EASTERN%20RAILWAY%20ACCELERATES%20SECTIONAL%20SPEED%20LIMIT,-Kolkata%2C%2020th&text=The%20sectional%20speed%20between%20Bimalgarh,55%20kmph%20to%2065%20kmph., 110 km/h between Andul and Howrah which is a part of Kharagpur - Howrah route.[5]
From Chhatrapati Shivaji Maharaj Terminus to Howrah - 12261. The train starts from Chhatrapati Shivaji Maharaj Terminus every Sunday, Tuesday, Wednesday & Thursday.[6]
| Station code | Station name | Arrival | Departure | |
|---|---|---|---|---|
| CSMT | Chhatrapati Shivaji Maharaj Terminus | --- | 17:15 | |
| BSL | Bhusaval Junction | 23:00 | 23:05 | |
| NGP | Nagpur Junction | 04:10 | 04:15 | |
| R | Raipur Junction | 08:22 | 08:24 | |
| BSP | Bilaspur Junction | 09:55 | 10:05 | |
| TATA | Tatanagar Junction | 16:10 | 16:20 | |
| HWH | Howrah Junction | 20:15 | --- |
| Station code | Station name | Arrival | Departure | |
|---|---|---|---|---|
| HWH | Howrah Junction | --- | 05:45 | |
| TATA | Tatanagar Junction | 08:48 | 08:58 | |
| BSP | Bilaspur Junction | 14:55 | 15:05 | |
| R | Raipur Junction | 16:35 | 16:37 | |
| NGP | Nagpur Junction | 20:50 | 20:55 | |
| BSL | Bhusaval Junction | 01:45 | 01:50 | |
| CSMT | Chhatrapati Shivaji Maharaj Terminus | 08:15 | --- |
12261 takes 1 technical halt at, . It takes about 7 mins at for addition of banker engine WAG-7 for the run through the ghats, which is removed at .
12262 has technical halt at if situation is normal and no halt at Kasara.
On July 30, 2024, the Howrah-Mumbai Express train derailed near Chakradharpur in Jharkhand's Chakradharpur division, resulting in a tragic accident around 3:43 am. Eighteen coaches were affected, including 16 passenger coaches, one power car, and one pantry car. This severe incident led to the deaths of two individuals and injuries to 20 others. Initial findings suggest a collision with a derailed goods train as the cause.[8] [9]