Ahmedabad–Kolkata Express

Kolkata Ahmedabad Weekly Express, formerly known as Sare Jahan Se Achchha Express, is an Indian express train. Kolkata Ahmedabad Weekly Express travels from Kolkata railway station to Ahmedabad railway station, a distance of 2089 km in 42 hours and 05 mins. The train was the first express train to travel from Chitpur railway station (Kolkata) to Ahmedabad railway station. It is hauled by a Tughlakabad (TKD) WAG 9 locomotive, and then to Ahmedabad Junction (ADI) by a Patratu or Abu Road based WDM 3A.

History
The Ahmedabad Kolkata Express initially traveled between Chitpur railway station and Ajmer Junction railway station as a 13 coach train. Later the terminating station was changed to Ahmedabad railway station via Ujjain.

Route
The train run from Ahmedabad Junction to Kolkata Chitpur via Ajmer Junction, Ratlam Junction, Bhopal Junction, Chopan, Barkakana Junction, Dhanbad Junction and Asansol Junction.

The train was rerouted in 2021 and now it goes from Ahmedabad Junction to Kolkata Chitpur via Chhayapuri,Ratlam Junction, Sant Hirdaram Nagar, Chopan, Barkakana Junction, Dhanbad Junction and Asansol Junction.

Direction reversal
The train used to reverse its directions 5 times at Ajmer Junction, Ratlam Junction, Bhopal Junction, Chopan and Barkakana Junction. It had the highest number of direction reversals in India. The new route reversed direction twice, at Chopan and Barkakana Junction.

Service
The trains have normal priority on the Indian railway network. They offer four classes of service: Second Class AC 2-tier (bays of 4 berths + 2 berth on the side) with open system berth, Second Class AC 3-tier (bays of 6 berths + 2 berths on the side) with open system berth and Second class 3 tier sleeper (bays of 6 berths + 2 berths on the side). Generally it has 2 AC 2-Tiers, up to 6 AC 3-Tiers ( both of which may be increased according to demand). It has no pantry car, 8 Sleeper Class + 2 UR (Unreserved) and 1 SLR (Second-Class Sitting Cum Luggage Rake).

The train covers a distance of 2089 km in 42 hrs 05 minutes.