Bangladesh Independence By jugoh Aug 15, 1947 Partition of India by the British Period: Oct 14, 1955 to Dec 16, 1971 West Pakistan and East Pakistan Mar 26, 1971 Bangladesh Declaration of Independence Mar 26, 1971 Sheikh Mujibur Rahman is arrested Period: Mar 26, 1971 to Dec 16, 1971 Bangladesh Liberation War Period: Mar 26, 1971 to May 25, 1971 Operation Searchlight Dec 3, 1971 India enters Bangladesh Liberation War against Pakistan Dec 16, 1971 Pakistan surrenders in Dhaka