| Howrah-Mumbai CSMT Mail (via Nagpur) | |
| Type: | Superfast Express |
| Locale: | West Bengal, Jharkhand, Odisha, Chhattisgarh & Maharashtra |
| First: | [1] |
| Operator: | South Eastern Railway |
| Start: | Howrah (HWH) |
| Stops: | 42 (2 one directional halts) |
| End: | Mumbai CSMT (CSMT) |
| Distance: | 1968km (1,223miles) |
| Journeytime: | 33 hours |
| Frequency: | Daily |
| Class: | AC First, AC 2 tier, AC 3 tier, AC Economy, Sleeper Class, General Unreserved |
| Seating: | Yes |
| Sleeping: | Yes |
| Catering: | Available |
| Observation: | Large windows |
| Baggage: | Available |
| Otherfacilities: | Below the seats |
| Stock: | LHB coach |
| Trainnumber: | 12809 / 12810 |
| Speed: | 130km/h maximum, 61km/h average including halts |
| Map State: | collapsed |
Howrah–Mumbai CSMT Mail (via Nagpur), with train numbers 12810 and 12809 is a Superfast Express train belonging to Indian Railways and maintained by South Eastern Railway that runs between Howrah Junction in West Bengal and Mumbai CSMT in Maharashtra.
It operates as train number 12810 from Howrah to Mumbai and as train number 12809 in the reverse direction.
Howrah Mumbai Mail via Nagpur was started by Bengal Nagpur Railway as a through coach service on 1892, with trains changed at Nagpur on GIPR and Asansol on EIR. The through coach service was converted to a dedicated train after the completion of Tatanagar - Kharagpur - Howrah line and started on 1900 as the Howrah Bombay Mail via Nagpur, with train numbers 2 UP from Howrah to Victoria Terminus and 1 DN from Victoria Terminus to Howrah. It was a premium train service, with First Class and Second Class Reserved Carriages attached to the train, with Restaurant Car facility availed to these passengers. Intermediate and Third Class coaches were also attached to this train.
The number 2 DN / 1 UP remained till 1989 (with operation shifted to South Eastern Railway after bifurcation of Bengal Nagpur Railway in 1955) when Indian Railways shifted to a 4-digit numbering scheme. Train number was changed as 8002 UP for Howrah - Bombay Mail and 8001 DN for Bombay - Howrah Mail. After its conversion to a superfast train, train number was again changed as 2810 UP for Howrah - Mumbai CST Mail and 2809 DN for Mumbai CST - Howrah Mail.
After 2010, due to the 5-digit numbering scheme directive by Indian Railways, train numbers were changed to 12810 UP for Howrah - Mumbai Mail and 12809 DN for Mumbai CSMT - Howrah Mail.
This train service, in its current iteration, runs with 22 LHB Coaches. The composition is
12810 and 12809 are operated using 4 rakes of 22 LHB coaches, with maintenance done after every round trip at Santragachi coaching depot. Since this is a mail train, India Post operates a railway mail service on 12810 and 12809 services
12810 Howrah Mumbai Mail via Nagpur leaves Howrah everyday at 07:35 PM and arrives at Mumbai CSMT on the third day at 04:25 AM.
12809 Mumbai Howrah Mail via Nagpur leaves Mumbai CSMT everyday at 09:10 PM and arrives Howrah on the third day at 06:20 AM.
The Howrah Mumbai Mail traverses the whole Howrah - Nagpur - Mumbai line and was the first train to run on the whole route after its opening, which started in 1900. Halts of this service are listed below:
| Howrah | Source | |
| Santragachi Jn | Halt only for 12809 | |
| Kharagpur Jn | ||
| Tatanagar Jn | ||
| Chakradharpur | ||
| Rourkela Jn | ||
| Jharsuguda Jn | ||
| Brajrajnagar | ||
| Belpahar | ||
| Raigarh | ||
| Kharsia | ||
| Sakti | ||
| Champa Jn | ||
| Bilaspur Jn | ||
| Bhatapara | ||
| Raipur Jn | ||
| Durg Jn | ||
| Raj Nandgaon | ||
| Dongargarh | ||
| Gondia Jn | ||
| Tumsar Road Jn | ||
| Bhandara Road | ||
| Nagpur Jn | ||
| Sewagram Jn | ||
| Wardha Jn | ||
| Pulgaon | ||
| Dhamangaon | ||
| Badnera Jn | ||
| Murtizapur Jn | ||
| Akola Jn | ||
| Shegaon | ||
| Jalamb | ||
| Nandura | ||
| Malkapur | ||
| Bhusaval Jn | ||
| Jalgaon Jn | ||
| Chalisgaon Jn | ||
| Manmad Jn | ||
| Nashik Road | ||
| Igatpuri | ||
| Kalyan Jn | ||
| Thane | Halt only for 12809 | |
| Dadar | ||
| Mumbai Chhatrapati Shivaji Maharaj Terminus | Destination |
It is hauled by a Santragachi Loco Shed or Tatanagar Loco Shed based head on generation equipped WAP-7 electric locomotive from end to end.
On 1 August 2024, 12810 Howrah Mumbai Mail, which had started service on 31 July 2024, derailed on 03:39 AM near Badabamboo in Jharkhand, which comes under Chakradharpur division of the South Eastern Railway division.[2] 18 LHB coaches out of total 22 coaches were derailed in the incident. Cause of the incident was explained as collision by an already derailed freight train at 120km/h. 2 people were killed in the derailment, while more than 40 people were seriously injured.[3] The Ministry of Railways announced an ex-gratia of INR 10 lakhs to the families of the deceased in the derailment, INR 5 lakhs towards grievously injured victims of the derailment and INR 1 lakh towards simple injuries occurred during derailment.[4]
This was the fourth major railway accident of the 2024 calendar year in the Indian Railways.