After passing the Indian Civil Service in 1925 he chose judicial service and joined as Assistant Magistrate and collector in Bengal under British Government. He was promoted as District and Session Judge in 1934 but took leave for higher studies in law. In 1938 Das Gupta returned to England and was called to the Bar from Gray's Inn. He became a judge of Calcutta High Court in 1948 and elevated to the post Chief Justice in 1958. After retirement of Justice Phani Bhusan Chakravartti he took over the charge of Chief Justice 1958 to 1959.[2][3] In October, 1958 Das Gupta became the chairman, Commission to enquire into Monopolies and Concentration of Wealth. He was also promoted as a Justice of the Supreme Court of India on 24 August 1959 after retirement of Hon'ble Justice N.H. Bhagwati.[4][5] Apart from law Das Gupta was a scholar of Economics and Sanskrit Literature.[1]