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Route map
	Legend
↓ 12261 • 12262 ↑
	Chhatrapati Shivaji
	Maharaj Terminus
	Maharashtra
	Chhatisgarh
	Chhatisgarh
	Jharkhand
	Jharkhand
	West bengal
	This diagram: view; talk; edit;

Mumbai CSMT-Howrah AC Duronto Express
Overview
Service type	Duronto Express
Locale	Maharashtra, Chhattisgarh, Odisha, Jharkhand & West Bengal
First service	29 September 2009; 15 years ago
Current operator(s)	South Eastern Railway
Route
Termini	Mumbai CSMT (CSMT); Howrah Junction (HWH)
Distance travelled	1,968 km (1,223 mi)
Average journey time	26 hours 35 minutes
Service frequency	4 days a week
Train number(s)	12261 / 12262
On-board services
Class(es)	AC First Class, AC 2 Tier, AC 3 Tier
Seating arrangements	No
Sleeping arrangements	Yes
Catering facilities	Available
Observation facilities	Large windows
Baggage facilities	Available
Other facilities	Below the seats
Technical
Rolling stock	LHB coach
Operating speed	74 km/h (46 mph) average including halts.
Route map
Route map
	Legend
↓ 12261 • 12262 ↑
	Chhatrapati Shivaji
	Maharaj Terminus
	Maharashtra
	Chhatisgarh
	Chhatisgarh
	Jharkhand
	Jharkhand
	West bengal
	This diagram: view; talk; edit;

The 12261 / 12262 Mumbai CSMT–Howrah AC Duronto Express is a Duronto Express train operating on the Mumbai–Howrah route.

Background

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

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]

Coach composition

Loco	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19
	EOG	A3	A2	A1	H1	PC	B12	B11	B10	B9	B8	B7	B6	B5	B4	B3	B2	B1	EOG

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

Locomotive

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 Kasara from 1500 V DC to 25 kV AC, it was hauled by WCAM-3 of KYN shed for that section.

Speed

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 [1], 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 [2]. 130 km/h on Badnera - Wardha route [3], 130 kmph between Wardha and Nagpur [4] [5], 130 km/h in Nagpur - Durg route, [6], 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 [7] [8] [9] [10] [11] [12], 110 km/h between Andul and Howrah which is a part of Kharagpur - Howrah route.^[5]

Time table

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
KSRA	Kasara	19:07	19:10
IGP	Igatpuri	19:38	19:40
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	---

From Howrah to Chhatrapati Shivaji Maharaj Terminus - 12262. The train starts from Howrah Junction every Monday, Tuesday, Wednesday & Friday.^[7]

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
IGP	Igatpuri	05:42	05:45
CSMT	Chhatrapati Shivaji Maharaj Terminus	08:15	---

Technical (operational) halts

12261 takes 1 technical halt at Kasara, Igatpuri. It takes about 7 mins at Kasara for addition of banker engine WAG-7 for the run through the ghats, which is removed at Igatpuri.

12262 has technical halt at Igatpuri if situation is normal and no halt at Kasara.

Accidents and incidents

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]