It is suggested that the area was inhabited by Buddhists and Hindus as evidence from inscriptions suggests there was an ancient university in Panchgaon, Rajnagar. The terrain was headquarters of the ancient Ita Kingdom founded by Raja Bhanu Narayan and its capital was in the villages of Bhumiura and Eolatoli.. Copper plates have been found from 930 AD in Paschimbagh, Tengubazar Mandir, Rajnagar. The district was also part of the ancient Kamarupa kingdom. In the mid-14th century, Shah Ruknuddin settled and propagated Islam in Kadamhata, Ita Pargana. Ruknuddin's mazar remains in Kadamhata Bazar.