Why Correct: The Toto tribe exclusively inhabits Totopara village in Alipurduar district of West Bengal, situated on the banks of the Torsa river.
Distractor Analysis: Arunachal Pradesh hosts tribes like Adi, Nyishi, and Apatani. Odisha has numerous tribes including Santal, Kondh, and Bonda. Tamil Nadu's tribal communities include Irula, Toda, and Kota.
Takeaway: The Toto tribe numbers fewer than 2,000 individuals and is classified as a Particularly Vulnerable Tribal Group (PVTG) by the Government of India.