[4] Upon the capture of Tripura by the Mughals in 1618, Yashodhar Manikya, prior to his expulsion from the kingdom, named Kalyan his heir, due to the former's lack of close male relatives.
[5] Following the Mughal's retreat after a deadly epidemic in the region,[6] the Tripuri nobles appointed Kalyan as the new ruler in 1626, confirming his previous nomination.
[citation needed] Like his predecessor, Kalyan refused to pay tribute to the Mughals, resulting in repeated attacks against the kingdom, which he was initially able to repulse.
Tripura was subsequently added to the Mughal revenue roll under the name "Sarkar Udaipur" and Kalyan was required to give up his son Nakshatra Roy (later known as Chhatra Manikya) as a hostage to Shuja's court.
[7] After his death in 1660, Tripura, already weakened by war, was further subjected to a fratricidal succession struggle amongst Kalyan's sons.