Police have been conducting raids since this morning to nab people involved in the killing, Manoj Kumar, In-Charge Superintendent of Police, said.
Among 34 arrested, 20 are women and 14 men, he said adding that the are raids still on.
A group of tribal people had yesterday surrounded the hut of the JD(U) leader Jainendra Kumar in Kishanpur Balua panchayat and allegedly set it afire following a properly-related dispute between them.