In addition, Chowdhury is a member of the governing body of Association for Social Advancement,[8] a micro-credit financing organisation.

Chowdhury participated in Bangladesh Liberation War in 1971 and was tortured by the Pakistan Army in his native Moulvibazar District.

[13] Chowdhury began his career in journalism as a correspondent with Daily Banglar Bani, co-founded and edited by Sheikh Fazlul Haque Mani, a nephew of Sheikh Mujibur Rahman, Bangladesh's founding father, shortly after the country became independent, according to an article he wrote for Manab Zamin.

In 1995, he wrote an article in the vernacular daily implicating BNP politician Morshed Khan, then a special adviser to Prime Minister Khaleda Zia, in a banking scandal.

[17] In 2000, the tabloid ran the transcript of an implicating phone conversation between Hussain Muhammad Ershad, a former president, and a High Court judge, Latifur Rahman, who was overseeing the former's graft case.

[19] In 2006, he was accused of playing down the revelation of terror plots in Britain as "the game of the British government" in the Aajker Sangbadpatra programme he hosted in Channel.

[21] On 9 March 2020, Chowdhury and 31 others, was sued by a ruling Awami League lawmaker for a story his newspaper ran about a sex ring operated out of a luxury hotel in Dhaka,[22] triggering responses from Amnesty International,[23] Human Rights Watch,[24] and other press organizations.