"India". The World Factbook. Central Intelligence Agency (United States). "Indo-Aryan 72%, Dravidian 25%, Mongoloid and other 3% (2000)"
"Pakistan". The World Factbook. Central Intelligence Agency (United States). "Punjabi 44.68%, Pashtun (Pathan) 15.42%, Sindhi 14.1%, Sariaki 8.38%, Muhajirs 7.57%, Balochi 3.57%, other 6.28%
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"Bangladesh". The World Factbook. Central Intelligence Agency (United States). "Bengali 98%, other 2% (includes tribal groups, non-Bengali Muslims) (1998)
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"Iran". The World Factbook. Central Intelligence Agency (United States). "Persian 61%, Azeri 16%, Kurd 10%, Lur 6%, Baloch 2%, Arab 2%, Turkmen and Turkic tribes 2%, other 1%"
"Afghanistan". The World Factbook. Central Intelligence Agency (United States). "Pashtun 42%, Tajik 27%, Hazara 9%, Uzbek 9%, Aimak 4%, Turkmen 3%, Baloch 2%, other 4%"
"Tajikistan". The World Factbook. Central Intelligence Agency (United States). "Tajik 79.9%, Uzbek 15.3%, Russian 1.1%, Kyrgyz 1.1%, other 2.6% (2000 census)"