Graduating from Calcutta University, Dr. Mookerjee became a fellow of the Senate in 1923. He enrolled as an advocate in Calcutta High Court in 1924 after his father's death. Subsequently he left for England in 1926, being called to the bar from Lincoln's Inn in 1927. At the age of 33, he became the world's youngest Vice-Chancellor at the Calcutta University and held the office till 1938. During his tenure, he introduced a number of constructive reforms and was active in the Asiatic Society as well as was a member of the Court and the Council of the Indian Institute of Science, Bangalore and Chairman of the Inter-University of Board.
He was elected as member of the Legislative Council of Bengal as a Congress candidate, representing Calcutta University, but resigned when the Congress decided to boycott the legislature. Subsequently, he contested the election as an independent and got elected.
The Bharatiya Jana Sangh, along with the Hindu Mahasabha and the Ram Rajya Parishad, launched a satyagraha to have pernicious provisions related to Article 370 removed. Mookerjee went to visit Kashmir in 1953 and was arrested on May 11, 1953, while crossing into the state and breaching the infamous Permit System. He died while under arrest and held in difficult conditions, passing away on June 23, 1953.
History of BJP