Pair 1 is correctly matched: Limbu, the second most numerous tribe of the indigenous people called Kiranti, live in Nepal, on the easternmost section of the Himalayas east of the Arun River, and in northern India, mostly in the states of Sikkim, West Bengal, and Assam. Pair 2 is incorrectly matched: Karbi people live in Assam and Meghalaya, not Himachal Pradesh. Pair 3 is correctly matched: The Dongaria Kondh tribe is indigenous to Odisha. Pair 4 is incorrectly matched: The Bonda tribe resides in the Malkangiri district of Odisha, not Tamil Nadu.