Bhojpur district is one of the 38 districts of the Indian state of Bihar. Arrah city is the administrative headquarters of this district. Bhojpur district came into existence in 1972. Earlier it was the part of Shahabad district. This district is named "Bhojpur" after great Parmara King Bhoja as most early settlers were Rajput rulers of Parmara dynasty then called as Ujjainiya.