Explanation:

The Angamis are a major Naga ethnic group native to the state of Nagaland in North-East India.

Toda people are a Dravidian ethnic group who live in the Nilgiri Mountains of the Indian state of Tamil Nadu.

Mappila, also known as a Mappila Muslim, formerly anglicized as Moplah/Mopla and historically known as Jonaka/Chonaka Mappila or Moors Mopulars/Mouros da Terra and Mouros Malabares, in general, is a member of the Muslim community of the same name found predominantly in Kerala, southern India.

Birhor people (Birhul) are a tribal/Adivasi forest people, traditionally nomadic, living primarily in the Indian state of Jharkhand. 

The Khasi people are an indigenous ethnic group of Meghalaya in north-eastern India with a significant population in the bordering state of Assam, and in certain parts of Bangladesh.