Chowdhury joined the
Pakistan Civil Service in 1960. He was the Director General of the Export Promotion Bureau in 1974. Chowdhury was one of the founders of
Union Capital Limited, formed after purchasing the local operations of
Peregrine Investments Holdings. He was the first chairman of Union Capital and had previously served as vice-president of the
Islamic Development Bank. By 2005, he had privatized 26 state owned enterprises and planned to privatize 16 more. He held road shows in Dubai, Karachi, Kualalampur, and Mumbai in an attempt to sell the state-owned
Rupali Bank. He supported the elections held by chief advisor
Latifur Rahman which returned the Bangladesh Nationalist Party to power. On 18 July 2006, his supporters and supporters of
Syed Makbul Hossain, member of parliament, clashed resulting in the death of one
Bangladesh Jatiyatabadi Chhatra Dal activist. In 2007, Chowdhury was a delegate of a conference on
Champaran Satyagraha organized by the Indian National Congress. Other delegates from Bangladesh included
Muhammad Yunus,
Dipu Moni, and
Reaz Rahman. Chowdhury was elected president of
Commonwealth Society of Bangladesh in 2010. He was elected to the advisory council of the chairperson of the Bangladesh Nationalist Party. He called for foreign treaties to be ratified in parliament at an event at the Jatiya Press Club organized by
Shujan. He was the managing director of Dahmashi Tours and Travels, local partner of
Air Asia. He spoke in favor of a caretaker government system for holding elections at an event of
Sushasaner Jonno Nagorik along with other members of the civil society of Bangladesh such as
Ajoy Roy,
Asif Nazrul,
A. S. M. Shahjahan,
Badiul Alam Mazumder,
Emaz Uddin Ahmed,
Kazi Ebadul Haque,
Moniruzzaman Mia,
Muzaffer Ahmad,
Subhash Singha Roy, and
Syed Abul Maqsood. Chowdhury met with
Marcia Bernicat, the United States ambassador to Bangladesh, along with a delegation of Bangladesh Nationalist Party in May 2016 along with
Abdul Moyeen Khan. In 2018, Chowdhury joined the
Awami League and presented flowers to Prime Minister
Sheikh Hasina at the
Ganabhaban. He had sought the nomination of Bangladesh Nationalist Party from
Sylhet-1 for the 1
1th Jatiya Sangsad election but the party had chosen to nominate Khandaker Abdul Muktadir, advisor to Khaleda Zia. He was appointed advisor to the Awami League. In December 2020, Chowdhury was elected chairman of the board of trustees of
Impact Foundation Bangladesh. In October 2023, he met a United States Pre-Election Assessment Team along with
Muhammad Faruk Khan,
Shammi Ahmed, and others. == Personal life and death ==