"They (Maoists) blew up a stretch of railway track around 2.30 am at Jharandih in the Coal belt Industrial Chord section in Dhanbad," said Senior Public Relations Officer of the Dhanbad Rail Division Amrendra Das.
Shaktipunj Express was delayed due to blast, he added.
Giridih Superintendent of police Ravi Kant Dhan said that the about 12 armed Maoists burnt three trucks at around 1 am in Giridih's Isri area and cut down trees to block road traffic on the Dumri-Giridih road.
The police officer added with explosives they also partially damaged a road bridge, which connects Dumri to the Grand Trunk Road.
Maoists pasted posters in Giridih's Parasnath area.
Tight security arrangements were made in the naxal-affected districts in the state.