No casualty was reported in the blast that took place late last night, Deputy Inspector General of Police, Magadh range, P K Shrivastava told PTI.
In Patna, Chief Public Relations Officer, East Central Railway, Arvind Kumar Rajak said the advance pilot engine running ahead of Bhubaneshwar-New Delhi Rajdhani Express jumped off the track due to the incident.
Nearly one dozen mail and Express trains including three Rajdhani Express trains have been stranded at various places between Gaya and Mughalsarai due to the incident, Rajak said.
The blast was trigerred during a one-day bandh call called by the Maoists against police firing in Aurangabad and Rohtas districts. The CPRO said that nearly three metre of the track has been damaged in the blast.
Electric wire overhead has also been damaged, he said.
The DIG said that the blast appears to be a powerful one creating a four-feet deep crater. Howrah-New Delhi Rajdhani Express, Bhubaneshwar-New Delhi Rajdhani Express, Sealdah-New Delhi Rajdhani Express, Jodhpur-Howrah Express and Doon Express were among the major trains stranded at various places.