[1] Chowdhury started his legal career by joining the Calcutta High Court bar.
He helped the founding of East Bengal and Assam Provincial Muslim Educational Society.
In 1932 he was offered a judgeship at the Calcutta High Court which he declined as he preferred a career in politics over law.
In 1937, he was re-elected to the Bengal Legislative Assembly from Natore District as a candidate of All India Muslim League.
His daughter Rabia married Hamoodur Rahman, who later served as Chief Justice of Pakistan from 1968 to 1975.