"(I)n the inscriptions issued by the rulers of Pragjyotisa-Kamarupa from the 4th to the 12th century A.D. it has been claimed that the founders of the respective dynasties belong to the Naraka line of kings." (Boruah 2005:1465) Boruah, Nirode (2005). "'Early State' Formation in the Brahmaputra Valley of Assam". Proceedings of the Indian Historical Congress. 66: 1464–1465. JSTOR44145968.