The Mlechchha dynasty ruled Kamarupa from their capital at Harruppesvar in present-day Tezpur, Assam, after the fall of the Varman dynasty. According to historical records, there were twenty one rulers in this dynasty, but the line is obscure and names of some intervening rulers are not known. Like all other Kamarupa dynasties a semi-mythical lineage from Narakasura was constructed to accord legitimacy to their rule. The Mlechchha dynasty in Kamarupa was followed by the Pala kings. The dynasty is unrelated to the previous Varman dynasty.

Kamarupa, an early state during the Classical period on the Indian subcontinent, was the first historical kingdom of Assam.