 So war was inevitable between the two parties.But when the war was taking a more critical turn, Chakradhwaj Singha, the king of Assam died in April 1670.He was succeeded by his brother Udayaditya Singha (Sunyatphaa, 1670-1672)
Although the negotiations with the Mughals continued, but Ram Singha suspecting the sincerity of the Barphukan returned to attack.