The assailants caught hold of the BJP panchayat-level worker in Cheria village last night and mercilessly beat him to death before dumping the body near Gandak river, the police said.
The villagers found the body earlier in the day and informed the local police station, they said.
The body has been sent for post-mortem and investigation was going to to find out the motive behind the murder of the BJP worker and motive behind it, police added.
