The police said the abandoned engine and the coach was set ablaze to steal scrap iron from the train that had derailed on 27 May in 2010, killing 148 people.
Fire brigade personnel rushed to the spot from Manikpara near here and doused the flames at about 11 AM.
Nobody was arrested, the police said.
The engine and the mangled coaches of Mumbai-bound Jnaneswari Express were abandoned by the side of the railway tracks since the derailment two years ago.
