Career
After Bangladesh Liberation War in 1971 he emerged as a Gono Sangeet (inspiration songs for the masses) singer. Some of his notable songs are "O Sokhina", "Shantahar", "Nelson Mandela", "Naam Tar Chhilo John Henry" and "Banglar Comrade Bondhu". Alamgir started his music career in 1966.
He played his role as a singer in 1969 uprising in East Pakistan.
Alamgir has worked with Swadhin Bangla Betar Kendra during the Liberation War. He serves as the president of Gono Sangeet Shamanya Parishad (GSSP).
Alamgir is also a writer He published his first book Chena China in 1984.
His next two publications were Muktijuddher Smriti Bijoyer Gaan and Gono Sangeeter Otit O Bortoman.
In 2013 he published 3 books - Amar Kotha, Jara Achhen Hridoy Potey and Smriti Alaponey Muktijuddho. So far, he has authored nine books