He was the principal and the Grand Mufti of Jamea Qasimul Uloom Dargah Hazrat Shah Jalal Sylhet[2] and editor of monthly magazine al-Qasim.

[3][4][5] Abul Kalam Zakaria was born on 15 March 1956 into a Muslim family of Lal Miah and Khairun Nesa in Bagua village of Bishwamvarpur upazila in Sunamganj district.

After completing his primary education in the village, he got admitted at Jamia Arabia Ramnagar Barmouttar Madrasa in Sunamganj Sadar in 1969, where he started his higher secondary studies.

[4] After completing his education in 1978, in the same year, he began his professional career by joining as a teacher at Jamea Qasimul Uloom Dargah Hazrat Shah Jalal, Sylhet.

[11] [12] After the funeral prayer, he was buried in the cemetery in front of the Darul Ikama building of Jamea Qasimul Uloom Dargah Hazrat Shah Jalal.