Complex sentence: East Pakistan had an area of 147,570 km 2 (56,977 mi 2), bordering India on three sides (East, North, and West) and the Bay of Bengal to the South.
Split into simpler sentences: East Pakistan had an area of 147,570 km 2 (56,977 mi 2). India bordered it on three sides (East, North, and West) with the Bay of Bengal to the South.