About Jamui
Jamui is a town and a municipality in Jamui district in the Indian state of Bihar. It is the district headquarter of Jamui district. Jamui was formed as a district on 21 February 1991 as a result of its separation from Munger. Historical existence of Jamui has been observed from the period of Mahabharta war. Archaeological and historical evidence shows its close association with the Jain tradition for a long past to the present time. A large part of this area is covered by forest. There are mainly two hypotheses which have been mentioned by historians regarding the origin of the name of the district Jamui. The first hypothesis said that the name of Jamui derived from ""Jambhiya Gram"" or ""Jribhikgram"" village, which has the place of attaining ‘Omniscience’ (Kevala Jnana) of Vardhaman Mahavira and according to another hypothesis the name Jamui is originated from Jambuwani.
Source : Wikipedia