The nation honoured Dr. Roy with the Bharat Ratna on 4 February 1961. On 1 July 1962, his 80th birthday, after treating his morning patients and discharging affairs of the State, he took a copy of the "Brahmo Geet" and sang a piece from it. 11 hours later Dr. Roy died at midday past three. He had gifted his house for running a nursing home named after his mother, Aghorkamini Devi. He had also constituted a trust for his properties at Patna to carry out social service, with eminent nationalist Ganga Sharan Singh (Sinha) being its first trustee.