[4] Nasim was born on 2 April 1948, to a Bengali Muslim family of Sarkars hailing from Kuripara in Qazipur, Sirajganj (then under Pabna District), Bengal Presidency.

[2] Ali served as the 3rd prime minister of Bangladesh in 1975 and was one of the four leaders killed in the Dhaka Central Jail as a part of the coup d'état on 7 November 1975.

In 1966, Sheikh Mujibur Rahman went to Pabna for six point movement rally after which he visited the home of Mansur Ali where he learned Nasim was a leader of Chhatra Union.

[8] Nasim became the joint secretary of Pabna District unit of Awami League after the independence of Bangladesh in 1971.

He sought the nomination of Awami League for the 1973 parliamentary election but lost out to a more senior politician.

He fled to India after the assassination of Sheikh Mujibur Rahman in the 15 August 1975 Bangladesh coup d'état.

[11] In February 2007, the Anti-Corruption Commission (ACC) published a list of 50 top corrupt suspects which included Nasim's name.

His wife, Laila Arzumand Banu, was also sentenced to 3 years of imprisonment for aiding him in amassing the wealth illegally.