Maoist rebels bombed a railway track in Gaya district, disrupting train services on the Gaya-Mughalsarai section on Saturday.
Traffic was also hit on the Delhi-Howrah route after the pantry car of Delhi-Patna Rajdhani Express caught fire in the wee hours.
An unspecified number of CPI(Maoist) rebels blasted the down track between Paraiya and Guraru stations just past midnight, bringing to a halt train services on the Gaya-Mughalsarai section of East Central Railway (ECR).
The track has been uprooted in a stretch of about four feet, ECR chief public relations officer AK Chandra said.
A live bomb was found on the tracks near the blast spot and a bomb disposal squad has been called to defuse it.
The local police, RPF personnel and Railway engineers have reached the spot and repair work is on, he said, adding it will take a few hours before the track is restored.
In another incident, the pantry car of Delhi-Patna Rajdhani Express caught fire just after the train had left Kuchman station in Uttar Pradesh around 1.30 a m.
The overhead traction wires were damaged due to the fire causing disruption of traffic on Delhi-Howrah main line, he said.
Nearly 12 trains, including Delhi-Sealdah Rajdhani Express and Delhi-Ranchi Rajdhani Express are stranded at various stations, Chandra said.
Chandra said technicians travelling in the Delhi-Patna Rajdhani Express detached the pantry car and the blaze was extinguished.
The reason behind the fire was being investigated and overhead traction wires were being repaired.
It will take another hour or so for the overhead wires to be repaired and after it is done trains on Gaya-Mughalsarai grand chord line will be diverted through the Delhi-Howrah main line via Sonenagar and Garhwa, he said.
