In 1967 he received the PhD of London University as a member of SOAS for the thesis "Oil prices and the Indian market, 1886-1964" where his supervisor was Edith Penrose.
A teacher at London and Sussex universities, Dasgupta acted as adviser to UN bodies including FAO, ILO, UNESCO, UNRISD and UNEP between 1972 and 1978.
He also wrote a number of books in Bengali on a variety of topics like his experiences as an administrator in CADC.
His last book was a treatise the development of the Bengalis, their history, society, economics, culture and language.
He was also widely travelled and he regularly contributed about his experiences in forty countries and inside India in various Bengali periodicals like Pratikshan and Nandan .