After the fall of the Pala dynasty of Kamrupa, the western region was reorganized into the Kamata kingdom when Sandhya moved his capital from Kamarupanagara to Kamatapur in about 1257 due to the frequent clashes with the Kacharis from the east.

According to Gosani Mangala (1823), the Khen rulers had a humble origin, implying that they were probably local chieftains who rose to power after the fall of the Palas.

[6] Though there is no contemporary historical evidence, some data from eighteenth-century's Gosanimangal claim that a boy named Kanta Nath became the Khen ruler Niladwaj, who hailed from a poor family in Taluk Jambari on the bank of Singimari.

[8] They worshipped Kamatashwari[9] (also called Chandi or Bhavani), thus providing a break from the earlier dynasties that drew their lineage from Narakasura, the son of Vishnu.

But Hussein Shah could not rule the kingdom— Bhuyan chiefs of the region defeated the invaders in 1505.