Who did Bangladesh get its independence from?

Pakistan. Prior to 1971, Pakistan consisted of two separate regions. The part now known simply as Pakistan was called West Pakistan while the area now called Bangladesh was East Pakistan. The two pieces were separated physically, economically, and to a large extent culturally. Simmering discontent led to a popular uprising. The region declared its independence on March 26, 1971; the Bangladesh War of Independence lasted until December 16 of that year when the government of Pakistan formally signed an instrument of surrender.