The Raptisagar Express is a Express which runs tri-weekly/weekly between Kochuveli/Ernakulam Junction and Gorakhpur/Barauni in India. This train goes via the cities of Kollam, Alappuzha, Kochi, Thrissur, Palakkad, Coimbatore, Tirupur, Erode, Salem, Chennai Central, Vijayawada, Khammam, Warangal, Ramagundam, Nagpur, Bhopal, Jhansi, Kanpur, Lucknow, Gonda and Basti. The current operator of the train is North Eastern Railway zone/East Central Railway zone of Indian Railways. It is the 10th longest train service of Indian Railways.

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Quick Facts Overview, First service ...

Raptisagar Express /Kochuveli-Gorakhpur Express

Overview
First service	February 15, 2001; 23 years ago (2001-02-15) (extended to Thiruvananthapuram Central)[1]
Current operator(s)	North Eastern Railway zone of Indian Railways
Route
Termini	Thiruvananthapuram Gorakhpur
Stops	60
Distance travelled	3,248 km (2,018 mi)
Average journey time	57 hours 05 minutes
Service frequency	Tri-weekly
Train number(s)	12511 / 12512
On-board services
Class(es)	First AC, 2 Tier AC, 3 Tier AC, Sleeper Class, General
Seating arrangements	Yes
Sleeping arrangements	Yes
Catering facilities	Available
Observation facilities	Large windows
Baggage facilities	Available
Technical
Rolling stock	Loco: WAP-4/WAP-7
Track gauge	1,676 mm (5 ft 6 in)
Operating speed	Average: 55 km/h Maximum speed: 110 km/h
Route map

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Quick Facts Overview, Current operator(s) ...

Raptisagar Express /Ernakulam-Barauni Express

Overview
Current operator(s)	East Central Railway zone of Indian Railways
Route
Termini	Ernakulam Junction Barauni
Stops	63
Distance travelled	3,436 km (2,135 mi)
Average journey time	62 hours
Service frequency	Weekly
Train number(s)	12521 / 12522
On-board services
Class(es)	First AC ,2 Tier AC ,3 Tier AC,Sleeper Class,General
Seating arrangements	Yes
Sleeping arrangements	Yes
Catering facilities	Available
Observation facilities	Large windows
Baggage facilities	Available
Technical
Rolling stock	Loco: WAP-4
Track gauge	1,676 mm (5 ft 6 in)

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Both trains run more than 3200 km per service.

The name "Raptisagar" is given to the train as the train connects the cities Thiruvananthapuram/Cochin which is situated near the Arabian Sea and Gorakhpur/Barauni from where Rapti river flows.

This train has 24 coach cars which includes Second AC and Third AC compartments being air conditioned.

12511 – Starts from Gorakhpur Junction every Sunday, Tuesday and Friday at 6:35 hrs and reaches Kochuveli on Day 3 at 17:20 hrs.

12512 – Starts from Kochuveli every Sunday, Tuesday and Wednesday at 6:15 hrs and reaches Gorakhpur Junction on Day 3 at 15:20 hrs

Train reverse at Chennai Central

The train (12512/12522) leaves Kochuveli/Ernakulam Junction at 6.15/10.15 AM on Tuesday, Wednesday & Sunday/Friday to reach Gorakhpur/Barauni at 3.10/11.50 PM on the 3rd day. The return train (12511/12521) leaves Gorakhpur/Barauni at 6.35 AM/ 11 PM on Thursday, Friday and Sunday/Monday to reach Kochuveli/Ernakulam Junction at 5.15/1 PM on the 3rd/4th day. The train has an average speed of about 58 km/h during its journey.