Chowdhury worked with Sheikh Mujibur Rahman to defend a Muslim slum in Kolkata near Circus Park during the 1946 Kolkata riots on Direct Action Day.
[1] He was a leader of the student wing of the Bengal Muslim League and close confident of Sheikh Mujibur Rahman.
[2] He was part of the "Inner Group" that sought to create independent Bangladesh under the leadership of Sheikh Mujibur Rahman with support from India.
[2] He was joined by Foyez Ahmad and Abu Naser Chowdhury.
[2] Choudhury was a Member of the 4th National Assembly of Pakistan representing Sylhet-V from 1965 to 1969.