Prasad served as Minister of Food and Agriculture in the central government, after the 1946 elections. After independence in 1947, Prasad was elected as President of the Constituent Assembly of India. This assembly prepared the Constitution of India. When India became a Republic in 1950, Prasad was elected as the first President by the Constituent Assembly.In 1957, Prasad was re-elected as the President. By this he became the only president of India to serve two full terms.He died on 28 February 1963.