Traditional Boats from Bangladesh Portraits: Prominent personalities Manual labour in Bangladesh. Lo Mustang D Day Veterans. Natural Creatures Haras National Crucifixion Phantom women of Bangladesh. The Poor & Homeless, Bangladesh. Calvados distillers (Apple brandy) Claire Pruvot Calvados Skies Some of my favorite photos Islam is the main religion of Bangladesh. The Muslim population is approximately 148.6 million constituting 90.4% of the total population, and making it the third largest in the world. The Constitution establishes Islam as the state religion, the majority of Muslims in Bangladesh are Sunni.