He was serving as the founding Chairman of Bangladesh Atomic Energy Regulatory Authority (BAERA) at the time of his death.

He received the European Economic Community Fellowship, 1988–1989, for post-doctoral research at the University of Karlsruhe, West Germany.

Choudhury obtained the Commonwealth scholarship to attend the McGill University for his PhD degree.

But as the liberation war broke out in Bangladesh in 1971, Choudhury actively protested the massacre by the Pakistani Army of the Bangladeshi people.

On his active protest, a shipping of Sabre Jet spare parts for Chittagong, East Pakistan, was cancelled.