After the war he entered politics, campaigning for S. W. R. D. Bandaranaike and joined his newly formed Sri Lanka Freedom Party. He was elected to parliament in 1952 general election from the Gampaha electorate, however he did not accept the office due to disagreements with S. W. R. D. Bandaranaike on the Sinhala Only Act. However, he was instrumental in stopping J. R. Jayewardene's march to Kandy in protest of the Bandaranaike–Chelvanayakam Pact.[3] He was re-elected in the next four elections in 1956, 1960 March, 1960 July and 1965. He lost his seat to A. T. Basnayake of the Sri Lanka Freedom Party, having contested the 1970 general election as an independent.