Short answers, pulled from the story.
Sheikh Mujibur Rahman was born on the 17th of March 1920 in the village of Tungipara. His family belonged to an aristocratic Bengali Muslim lineage tracing back eight generations to a Sufi missionary from Eastern Iran.
The six-point plan demanded abolishing electoral colleges called Basic Democracy while restoring universal suffrage. It required separate fiscal policies for East and West Pakistan including distinct currencies or constitutional safeguards against capital flight.
Assassins struck his Dhanmondi 32 residence on the 15th of August 1975 killing most family members alongside him during the coup d'état. His administration lasted seven months before ending abruptly following this attack.
Awami League members drafted a constitution adopted on the 4th of November 1972 which came into force on the 16th of December that same year. This document transformed the state apparatus into machinery for an independent Bangladeshi state.
Pakistani forces launched Operation Searchlight to arrest Sheikh Mujibur Rahman and other Bengali leaders on the 25th of March 1971. He remained in solitary confinement throughout the entire war while being held at Central Jail Mianwali after being flown from Chittagong.