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
Ahmadiyya by country Ahmadiyya by country Ahmadiyya is an Islamic religious movement originating in 1889 in northern India around the teachings of Mirza Ghulam Ahmad (1835–1908), who claimed to have been divinely appointed as both the promised Mahdi and Messiah expected by Muslims to appear towards the end times. According to the "World Christian Encyclopedia", the Ahmadiyya movement is the fastest growing Islamic group as of the early 21st century. The country with the largest Ahmadiyya population is Pakistan, with an estimated 4 million Ahmadi Muslims. Excluding small nations, the country with the largest proportion of Ahmadi Muslims to the wider Muslim population