Benimadhab Das was born in 1866 in Chattagram of erstwhile East Bengal, now Bangladesh. He was a renowned teacher and scholar. He had joined Ravenshaw Collegiate School as a Headmaster. Influenced by Keshab Chandra Sen, the founder of Nababidhan Brahma Samaj, a reformist spiritual organization, he had joined Brahma Samaj. However he was a patriot above everything else. He taught history and philosophy to his students. He was the proud father of two great revolutionary daughters - Kalyani and Bina, of whom Bina rose into fame by firing at Governor Stanley Jackson in 1932.