Bangladesh followed by 86.6 percent of the population. The country is home to most Bengali Muslims, the second-largest ethnic group in the Muslim world. Most Bangladeshi Muslims are Sunni, followed by Shia and Ahmadiya. About four percent are non-denominational Muslims. Bangladesh has the fourth-largest Muslim population in the world, and is the third-largest Muslim-majority country (after Indonesia and Pakistan). Sufism has a lengthy heritage in the region. The largest gathering of Muslims in Bangladesh is the Bishwa Ijtema, held annually by the Tablighi Jamaat. The Ijtema is the second-largest Muslim congregation in the world, after the Hajj. Hinduism is followed by
World Assembly of Muslim Youth World Assembly of Muslim Youth The World Assembly of Muslim Youth is an international Islamic educational organization whose stated purpose is “preserve the identity of Muslim youth and help overcome the problems they face in modern society”. Reportedly the world's largest Muslim organization, WAMY organizes conferences, symposia, educational workshops and research circles to address youth and students issues, in addition to football tournaments and European Muslim Scouts camps for Muslim youth in Europe. Along with the Muslim World League, it is part of a "worldwide network of largely Saudi-funded groups...promoting Islamic teachings and encouraging Muslims to be more religiously observant,