Nurul Amin Choudhury came to the United States in 1963 to attend Fairleigh Dickinson University in New Jersey and received MBA degree. After graduation he joined IBM World Trade Corporation as a Market Research Analyst. Later on he joined SeviceMaster Management Services Corporation as a Management Consultant. 

During Bangladesh Freedom Movement he was elected chairman of the Fund Rising Committee of Bangladesh League of America. He was responsible for raising fund for freedom fighters. He volunteered as the representative of Bangladesh League of America to help organize CONCERT FOR BANGLADESH at Madison Square Garden in New York.

Nurul Choudhury is one of the founders of Bangladesh Association of North Texas (BANT) established in 1987. He was four term president of BANT. He is involved in the affairs of Federation of Bangladesh of North America (FOBANA) from the very beginning. He was the Convener of 2002 FOBANA Convention held in Dallas, Texas. He was elected the chairman FOBANA Executive Committee in 2004. He was selected by 2020 FOBANA Executive Committee to be an Advisor. 

Nurul Choudhury is very much involved in the socio-cultural affairs of Bangladesh community in Dallas, Texas.