[2] He served as Bangladesh's first Chief of Protocol beginning in 1972, Foreign Secretary from 1984 to 1986, and High Commissioner to India from 1986 to 1992.
[2] In 1972, Choudhury was appointed as Bangladesh's first Chief of Protocol, within the Ministry of Foreign Affairs, following the country's independence from Pakistan.
[2] Choudhury was next appointed as Bangladesh's Ambassador to Bahrain and the United Arab Emirates from 1976 to 1978.
[2] He then served as Ambassador accredited to both the European Economic Community (EEC) and the Benelux nations - Belgium, Luxembourg and the Netherlands - from 1978 until 1982.
[2] He was the chief coordinator for the 13th OIC Foreign Ministers' Meeting, which was held in 1983 in Dhaka.
He served on the Bangladesh Rural Advancement Committee (BRAC), the world's largest non-governmental development organization, from 1992 until 2006.