[1] He wrote in his memoirs Aamar Kotha, which was serially published in the fortnightly Tarokalok, "When I first got admitted in the Dhaka University, I turned to Najmul Huda Bacchu vai to get a chance in theatre.

Hearing that besides acting, I write plays also, Momen Sir asked me, 'Have you read Bernard Shaw?'

His notable plays include Ekhono Kritadas, Tomrai, Amader Sontanera, Kokilara, Bibisab, Meraj Fakirer Maa, Mayik Master, Songsoptok, Pathar Somoy, Jibon Chhobi, and Baba.

His other notable films include Sareng Bou (1978), Ekhoni Somoy, Dui Jibon, Sokhi Tumi Kar, and Bihanga.

[1] Mamun was suffering from acute coronary syndrome along with diabetes, hypertension, and kidney and liver complexities.