Nara Narayan

Naranarayan (r. 1554–1587)^[1] was the last ruler of the undivided Koch dynasty of the Kamata Kingdom. He succeeded his father, Biswa Singha. Under him the Koch kingdom reached its cultural and political zenith. Under his rule, and under the military command of his brother Chilarai, he was able to subjugate the entire Brahmaputra valley, including the Ahom kingdom; besides the Kachari, Tripura kingdoms, as well as the Khyrem, Jaintia and others.^{[verification needed]} This influence was halted when he faced Suleman Karranni, the Sultan of Bengal.

He introduced a silver coin, called the Narayani,^[2] that greatly influenced the numismatics of Assam.

^ The end of Naranarayan's reign is based on numismatic evidence: the earliest dates of coins issued by Lakshminarayan and Raghudev. (Nath 1989, p. 47)
^ Rai Barma 1988