Mufti Imdadul Haque completed Dawra-e-Hadith and Takhassus Fil Fiqh (Fiqh Honours) from Jamea Qasimul Uloom, Dargah Hazrat Shahjalal (RA), Sylhet.
Previously, he served as a Muhaddith at Dhaka Uttar Ranaping Arabia Madrasa, Golapganj, and Jamea Hussainia Matinia Hetimganj Madrasa.
He is currently serving as a Muhaddith and Mufti at Jalalpur Qasimul Uloom Madrasa, Jagannathpur, Sunamganj.
He is also serving as the Imam and Khatib of Palliganj Bazar Central Jame Masjid, Jagannathpur, Sunamganj.
In addition, he is the Director of the Islamic Research Council Bangladesh.
He is also a Mufti and a member of the Admin Panel of the popular and widely accepted Fiqhi Facebook group, "Daily Questions: Shari'ah Solutions."