He died in a Kalarpole encounter with the Indian Imperial Police.He hailed from Feringibazar, Chittagong, his father's name was Ranjan Lal Sen. Sen joined in revolutionary politics against the British rule while studying in intermediate class.He took active participation in the Chittagong Uprising led by Masterda Surya Sen.After the encounter Sen along with his comrades retired to the village with great difficulty after successfully evading police and military surveillance.While police arrived, there was a sharp exchange of fire and Sen, Deba Gupta, Monoranjan died.