KANPUR: Several trains like Kalindi Express, Chauri Chaura Express and Ajmer-Sealdah Express remained late for more than an hour owing to breakage in the GMC fourth line on Sunday. GMC is a railway station code. Even this kind of break was also reported earlier on Saturday. Luckily Licchavi Express and Poorva Express passed on the track safely. The movement of the trains started only after the damaged track was changed.