Syed Muhammad Rezaul Karim (Bengali: সৈয়দ মুহাম্মদ রেজাউল করিম; born: 1 February 1971), also known by his title Charmonai Pir,[1] is a Bangladeshi Deobandi Islamic scholar, politician, religious speaker and social reformer who serving as the second leader of Islami Andolan Bangladesh.

[4] Syed Muhammad Rezaul Karim was born on 1 February 1971 in the village of Char Monai in Barisal, East Pakistan.

Syed Faizul Karim is his younger brother, an influential Islamic scholar and politician in Bangladesh.

Then he obtained higher degree in Fiqh and Hadith from Sagardi Islamia Kamil Madrasa, Barisal.

[7] After completing his education, he joined Charmonai Jamia Rashidia Islamia as a teacher of its Alia branch.