Choudhury was born on 23 January 1952, in
Sylhet. He passed S.S.C. exam from
Sylhet Government Pilot High School in 1968 and H.S.C. exam from
Jagannath College in 1970. He completed his Bachelor of Dental Surgery in 1975 from
Dhaka Dental College and Hospital under
University of Dhaka. He received Doctor of Philosophy (PhD) from University of Dhaka in 2000. He received fellowship in Dental Public Health under
World Health Organization Fellowship Program 1983–1984,
London University, UK and postdoctoral research fellow, 1992–1993 at Department of Oral Biology & Pathology, School of Dental Medicine,
State University of New York (SUNY) at Stony Brook, New York City. He became the Fellow of International College of Continuous Dental Education (FICCDE) in 2003 and Fellow of International congress on Oral Cancer (FICOOC) in 2005.He received Fellowship in Dental Surgery from Royal College of Surgeons of England (FDSRCS) in 2013. ==Career==