Country: Indea, Bangladesh, Afghanistan, Sri Lanka.
Majority Ethnic Group: Bengali, Pashtuns, Sinhalese, Hindi
Country: India
Majority Ethnic Group: Bengali (8.1% of total population)
Country: Bangladesh
Majority Ethnic Group: Bengali (98.8% of total population)
Country: Afghanistan
Majority Ethnic Group: Pashtuns (42% of total population)
Country: Sri Lanka
Majority Ethnic Group: Sinhalese (74.9% of total population)