[3] Chowdhury was born on 1 December 1944 in Gohira village, Raozan upazila, Chittagong District, East Bengal, British Raj (now Bangladesh).

Chowdhury and other student activists acquired firearms from the Rifles Club and an arms depot in Majhirghat.

After the assassination of Sheikh Mujibur Rahman, he formed a Mujib Bahini unit to resist the Khondaker Mostaq Ahmad government.

He beat the Mir Mohammed Nasiruddin, the Bangladesh Nationalist Party candidate and previous mayor who was appointed to his post, to win the election by 16 thousand votes.

In 2005 the Bangladesh Nationalist Party government gave its full support to Mir Mohammed Nasiruddin.

[6][7] He served 17 years until his electoral defeat by Bangladesh Nationalist Party candidate M Manjurul Alam in 2010.

[citation needed] After the army-backed government assumed power in Bangladesh in January 2007, Mohiuddin and other politicians in the country were arrested in an overnight raid on 7 March.

On 17 October, when the government finally permitted him to fly abroad and just minutes before he boarded the aircraft en route to Bangkok, Chowdhury's daughter died.

He was buried in his family graveyard at Chashma Hill with an honor guard performed by Bangladesh Police.