[1] Kamrul Ahsan was born on 20 January 1969 in Lakshmipur, Bangladesh, to Mohammad Abdus Sobhan and Mahfuza Begum.
[3][4] Ahsan began his academic career as a lecturer in the Department of Philosophy at Jahangirnagar University in 1993.
Throughout his tenure, he has held various administrative positions, including membership on the Senate, Syndicate, and Academic Council.
He served as the Provost of Begum Khaleda Zia Hall, Chairman of the Department of Philosophy, and General Secretary of the Teachers' Association.
He served as the General Secretary of the Bangladesh Philosophical Association and as the president of the Jahangirnagar University unit of the Nationalist Teachers’ Forum.