Amar Manikya was very proud of the successful conquest of Taraf and even minted a coin referring to himself as the Conqueror of Sylhet.
[9] Following the conquest of Noakhali and Chittagong by the Arakanese king Min Phalaung, a large contingent was sent by Amar Manikya into the occupied regions to drive out the invaders.
Additionally, the Portuguese soldiers who formed part of the Tripura army were enticed to desert, turning their camps over to the enemy.
This forced the Tripuri to begin retreating back to Chittagong, though at the Karnaphuli River, they were attacked and defeated by the Arakanese, resulting in heavy casualties.
However, upon reaching Chittagong, the army reorganised and launched a counter-assault, capturing seven of the enemy fortresses and forcing their retreat.
As a result of this humiliation, Amar Manikya committed suicide, with his wife later performing Sati in his funeral pyre.