The question does not specify whether the meaning of longest here is in terms of total number of coaches or in terms of total distance travelled.
In terms of total number of coaches, the train name is Prayagraj SF Express (12417/18) running between New Delhi and Prayagraj Junction with LHB rake of 23 coaches.
In terms of total distance travelled, the train name is Vivek Express (22503/22504).
Vivek Express (22503/22504) running between Dibrugarh, Assam and Kanyakumari, Tamil Nadu covers the longest distance.
The train travels via different zones of Indian Railways covering different cities like Dimapur, Guwahati, Siliguri, Kolkata, Bhubaneswar, Cuttack, Visakhapatnam, Vijayawada, Nellore, Salem, Erode, Coimbatore, Ernakulam, Thiruvananthapuram etc.
About Vivek Express
- The Vivek SF Express is a superfast express train in Indian Railways which runs between Dibrugarh and Kanyakumari.
- The train operates as train number 22503 from Kanyakumari to Dibrugarh and as train number 22504 in the reverse direction.
- The 22503 Vivek SF Express departs Kanyakumari at 05:25 pm on daily basis and arrives Dibrugarh at 09:00 pm on the fourth day of commencing of journey. The total travel time is 75 hours 35 minutes.
- The 22504 Vivek SF Express departs Dibrugarh at 07:35 pm on daily basis and arrives Kanyakumari at 09:55 pm on the fourth day of commencing of journey. The total travel time is 74 hours 20 minutes.
- The train travels total distance of 4,155 kilometers between Kanyakumari and Dibrugarh.
- The train is hauled by a electric locomotive WAP-7 of ED/RPM shed between Kanyakumari and Visakhapatnam Jn, WAP-7 of SGUJ shed between Visakhapatnam Jn and New Cooch Behar and a diesel locomotive WDP-4B/4D of SGUJ shed between New Cooch Behar and Dibrugarh.
- The train has total 8 rakes running between Dibrugarh and Kanyakumari.
- The train runs with LHB rake of 22 coaches in which there are 6 AC III tier coach, 2 AC II tier coach, 1 Pantry Car, 7 sleeper coach, 4 general coach, 1 End on Generator vans (EOG) and 1 Seating cum Luggage Rake (SLR).
- Vivek SF Express is currently the longest daily running superfast express train in terms of distance and time in Indian Railways network and longest train route in Indian Subcontinent.
- Vivek SF Express is the 30th longest train route in the world.
NOTE :
- The older train number of this train was 15905/15906.
- The train earlier used to run on weekly basis instead of daily basis.
- Vivek Express refers to multiple express trains on Indian Railways network which were launched in year 2013 to commemorate the 150th birth anniversary of Swami Vivekananda.
IMAGES: Google.