"(A)ccording to the Yogina Tantra—a product of seventeenth-century Assam—the entire religion of Kamarupa is itself described as kirata dharma. (Urban 2011, p. 237) Urban, Hugh B. (2011). "The Womb of Tantra: Goddesses, Tribals, and Kings in Assam". The Journal of Hindu Studies. 4 (3): 231–247. doi:10.1093/jhs/hir034.