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
Muslim world Young Muslims have the lowest average levels of education of any major religious group, with an average of 6.7 years of schooling, which lag behind the global average (8.6 years of schooling). The study found that Muslims have a significant amount of gender inequality in educational attainment, since Muslim women have an average of 4.9 years of schooling; compare to an average of 6.4 years of schooling among Muslim men. The literacy rate in the Muslim world varies. Azerbaijan is in second place in the Index of Literacy of World Countries. Some members such as Iran, Kuwait, Kazakhstan, Tajikistan and