Rubuta ci gaba don wannan sakin layi - Chowdhury ya shiga siyasa a lokacin rayuwarsa. Ya sami damar ɗaga haramcin yankan shanu a Faridpur da British Raj. Ya yi shekaru 17 a matsayin Shugaban Hukumar Gundumar Faridpur. Ya kasance muhimmin mai shirya motsi na Pakistan da kuma Kungiyar Musulmi ta Indiya. A cikin 1937 an zabe shi zuwa Majalisar Dokokin Bengal. Daga 1941 zuwa 1953 ya yi aiki a matsayin Shugaban rukunin gundumar Faridpur na kungiyar Musulmi. Daga 1941 zuwa 1947 ya kasance wani ɓangare na kwamitin aiki na Bengal Muslim League. Daga 1952 zuwa 1947 ya yi aiki a matsayin Babban Sakataren Kungiyar Musulmi ta Gabashin Bengal. An kore shi daga ƙungiyar kuma ya shiga Jam'iyyar Krishak Sramik. A shekarar 1950 an zabe shi zuwa Majalisar Dokokin Pakistan. A cikin 1954 an zabe shi zuwa Majalisar lardin Pakistan ta Gabas. Ya yi aiki a matsayin Ministan Aikin Gona, Ministan Jute, da Ministan Gandun Daji a gwamnatin AK Fazlul Haq. An zabe shi a Majalisar Dokokin Pakistan a shekarar 1955. Ya taimaka wajen ƙaddamar da Jam'iyyar Krishak Praja a ƙarƙashin AK Fazlul Haq a 1957. Ya taimaka wajen kafa National Democratic Front da Pakistan Democratic Movement. Ya shiga Jam'iyyar Demokradiyyar Pakistan kuma ya shiga. Nurul Amin ne ya jagoranci shi. Ya yi aiki a matsayin mataimakin shugaban Jam'iyyar Demokradiyyar Pakistan. Ya taimaka wajen kafa Kwamitin Ayyukan Demokradiyya ta Shugaba Ayub Khan. Ya rasa babban zaben Pakistan na 1970 ga dan takarar Awami League na Bangladesh. Bayan fara yakin neman 'yanci na Bangladesh
a 1971 ya sanar da goyon bayansa ga gwamnatin Pakistan.