Dr. Roy believed that swaraj (the call to action for India's freedom) would remain a dream unless the people were healthy and strong in mind and body. He made contributions to the organisation of medical education. He played an important role in the establishment of the Jadavpur T.B. Hospital, Chittaranjan Seva Sadan, Kamala Nehru Memorial Hospital, Victoria Institution (college), and Chittaranjan Cancer Hospital. The Chittaranjan Seva Sadan for women and children was opened in 1926. Women were unwilling to come to the hospital initially, but thanks to Dr. Roy and his team's hard work, the Seva Sadan was embraced by women of all classes and communities. He opened a center for training women in nursing and social work.