B. A. Hons. (1st position), M.A (1st position) in Islamic History & Culture, Post- graduate Diploma in Persian Language (DU), Ph.D in History (Aligarh), Fulbright Scholar (Boston College, USA), British Council Visiting Scholar (University of Birmingham, UK)
42 (forty two) research articles published in referred journals and edited books
1. Muslim Itihastattwa (Muslim Historiography), Dhaka University, Dhaka, 2008
2. Society and Urbanization in Medieval Bengal, Asiatic Society of Bangladesh, 2009
3. (editor) Liberation War of Bangladesh : Background and Event, Bangladesh Itihash Parishad, 2009
4. A Quest for Islamic Learning: Essays in Memory of Professor Serajul Haque (edited), Asiatic Society of Bangladesh, 2011
5. Probandha Sankolon (An Anthology), Department of Islamic History & Culture, University of Dhaka, 2011
Socio - economic history of medieval India, Historiography: Muslim Historiography, minority studies, medieval urbanization in Bengal, Bangladesh studies.
Joined as lecturer in the Dhaka University, Department of Islamic History & Culture (1990); Professor (2004); Dean, Faculty of Arts (2014 - 2016 ); Chairman, Department of Islamic History & Culture (2008-2011); Chairman, Department of Arabic (2015); Provost, Kabi Jasimuddin Hall (2007-2013); General Secretary (2004, 2005 & 2006) and Vice President (2009, 2011) of the Dhaka University Teachers’ Association; Elected member for different period in the Dhaka University Senate, Syndicate & Academic Council; Nominated member in several public and private University Senate, Syndicate & Academic Council for different tenure; Convener, Textbook Crisis Resolution National Committee (2008), Convener, Textbook Printing and Distribution Oversee and Advisory Committee (2009 & 2010); Member, National Education Policy 2010 Implementation Committee; Member, National Curriculum Coordination Committee (NCCC); Editorial Member, Journal of Serajul Haque Centre for Islamic Research and the Journal of the Asiatic Society of Bangladesh (Humanities); Editor, Bangladesh Itihas Parishad Journal Itihas (2009 - 2014); Council Member (2006 - 2009), Asiatic Society of Bangladesh; General Secretary, Bangladesh Itihas Parishad (2005 - 2009); General Secretary, Aligarh Old Boys’ Association of Bangladesh (2007 - 2009); Editor, Islam and Moral Learning (textbook for classes VI-X); Besides, associated with different professional and socio-cultural bodies like Bangla Academy, Bangladesh Association for American Studies, Bangladesh Association for Fulbright Scholars, Indian History Congress and so on.
The Justice Ibrahim Gold Medal for extraordinary research (2008).