on his return to india bose worked with indian pediatrician k. c. chaudhuri, who founded the first pediatric hospital in india, the institute of child health in calcutta, inaugurated in 1957. sisir was rockefeller fellow at harvard medical school and the children's hospital in boston and the first editor of "indian pediatrics" (1964–66). he became director of the institute of child health from 1972 for twenty years and then president until his death in 2000.