Irulas

The Irulas walked across the Bandhipur sanctuary and set up a camp at this place since there was a river running by at this place. They found this place so secure that the camp became a permanent settlement.They specialize in cobra antivenin, where they milk a cobra to produce an antidote for snake bite. Irulas began moving to cities in Kerala, Tamil Nadu, and Karnataka once there was a requirement of snake bite cure.

Kurumbas

Kurumba, a people living in the Cardamom and Nīlgiri hills, west-central Tamil Nadu state, southern India. Originally pastoralists, the Kurumba were probably identical with or closely related to the Pallavas. With the decline of the Pallava dynasty in the 8th century, Kurumba forefathers dispersed over a wide area of southern India, becoming geographically separated from each other and culturally distinct.

Todas

Toda people are a Dravidian ethnic group who live in the Indian state of Tamil Nadu. Before the 18th century and British colonisation, the Toda coexisted locally with other ethnic communities, including the Kota, Badaga and Kurumba, in a loose caste-like society, in which the Toda were the top ranking.