Union Railways Minister Sadanand Gowda suspected "sabotage" by Maoists is behind the derailment of Delhi-Dibrugarh Rajdhani Express at Golden Ganj station near Chapra in Bihar as there was a blast on the track in which four passengers were killed HELPLINE NUMBERS: Chhapra – 06152-243409, 09771443941, Hajipur – 06224-272230, Muzaffarpur – 0621-2213034, New Delhi – 011-23342954 A senior Railways official has said that a blast on the track could have caused the derailment. Union Railways Minister Sadanand Gowda ruled out any information on the cause of the accident, but pointed that Maoists had called a ‘bandh’ in the area.