Al Mahmud is one of the greatest poets in the Bengali literature. He is also a novelist and short story writer. He was born in Morail, Brahmanbaria in the year 1936. He finished his education in this village. Then he worked as a journalist.
He published his first great work “Lok Lokantor” in 1963 which became very popular. His other famous works are Kaler Kalosh (1966), Sonali Kabin (1966) and Mayabi Porda Dule Otho (1976). Pankourir Rakta and Upomohadesh are his works on novel and short story category. His poetical work “Sonali Kabin” is a milestone in Bengali poetries.
He was a freedom fighter in the Liberation War of Bangladesh in 1971. He won Bangla Academy Award in 1968 and Ekushey Padak in 1987.