
Traditionally Sultanganj formed a part of the great Anga, State. In the days of the Mahabharata, Karna, the sixth brother of the five Pandavas, ruled in Anga. The capital of Anga was Champa. Champa is the present Champanagar situated three miles to the west of Bhagalpur. King Karna had his castles at Champa (modern Champanagar) and Jahnugiri (modern Sultanganj). At present Champanagar, the- site of Karna''s castle, is well known as Karnagarh. Karnagarh is practically a part of Bhagalpur town now.