All passengers of the train are safe, he said.
The incident occurred at Khantapada in Kharagpur division of South Eastern Railways, said an official of the East Coast Railway (ECoR), adding that three fire tenders reached the spot and doused the blaze.
The power car was disconnected from the rest of the train and the overhead electric wires were switched off for safety reasons.
The train left Khantapada for Bhubaneswar at 2.59 pm with all the passenger coaches and one generator car, the official added.
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