Question

whwn did Sri Lanka gained independence​

Answer 1

4 February 1948

It succeeded when, on 4 February 1948, Ceylon was granted independence as the Dominion of Ceylon. Dominion status within the British Commonwealth was retained for the next 24 years until 22 May 1972 when it became a republic and was renamed the Republic of Sri Lanka.

Answer 2

Sri Lanka gained independence on 4 February 1948