The railway communications on Chandpur-Chittagong route, which was suspended following a train derailment, has resumed after 31 hours - early on Friday.
Meanwhile the communications between Chandpur-Laksham and Chandpur-Comilla were also suspended.
The train services resumed on the routes around 12:30am.
Railway sources said the communication resumed when three relief trains from Laksham, Chittagong and Akhaura went to the spot.
On Wednesday, some 12 bogies of a Chandpur-bound oil container train went off the tracks at Bakalia around 5:20pm.