Islam in Bangladesh Islam in Bangladesh Bangladesh is a Muslim majority nation and Islam is official religion of the People's Republic of Bangladesh. Islam is the largest religion of Bangladesh, the Muslim population is approximately 148.5 million, which is the third largest Muslim population in the world (after Indonesia and Pakistan), constituting 90% of the total population as of 2015. Religion has always been a strong part of identity, but this has varied at different times. Bangladesh although a developing country is one of the few secular Muslim majority countries in the world. Islam was introduced to Bengal in at least 7th-8th century
Muslim world boundaries of the Muslim world. The Open Doors USA organization, in its 2012 survey of countries around the world that persecute Christians, listed 37 members of the Muslim world amongst the top 50 countries where Christians face the most severe persecution. 9 of the top 10 countries are Islamic-majority states. As the Muslim world came into contact with secular ideals, societies responded in different ways. Some Muslim-majority countries are secular. Azerbaijan became the first secular republic in the Muslim world, between 1918 and 1920, before it was incorporated into the Soviet Union. Turkey has been governed as a secular state