Arrest of Sheikh Mujibur Rahman
At around 01:30 on 26 March 1971 (UTC+6), Sheikh Mujibur Rahman, the president of the All-Pakistan Awami League (AL) and the premier-elect in the 1970 Pakistani general election, was arrested by the Pakistan Army's Special Service Group from his private residence in Dacca, East Pakistan, Pakistan (present-day Dhaka, Bangladesh). The arrest operation was codenamed Operation Big Bird and occurred with Operation Searchlight.
Source: Wikipedia — Arrest of Sheikh Mujibur Rahman (CC BY-SA 4.0)