[7] According to linguist Paul Sidwell, Munda languages arrived on the coast of Odisha from Southeast Asia about 4000–3500 years ago.[8] The Austroasiatic language speaker spread from Southeast Asia and mixed extensively with local Indian populations.[12] The Hill Kharia community encompasses various gotras (clans), including Alkosi, Baa, Bhunia, Bilung, Dhar, Digar, Dolai, Dungdung, Gidi, Golgo, Kerketta, Kharmoi, Khiladi, Kiro, Kotal, Kullu, Laha, Nago, Pichria, Rai, Sal, Saddar, Sandi, Sikari, Soreng, Suya, Tesa, Tete, and Tolong.[citation needed] The Kharia who were under zamindars during British rule are now land owning farmers in independent India.Both men and women wear ornaments generally made of Brass, Nickel, Aluminium, Silver and rarely of Gold.The Dhelkis are agricultural labourers and agriculturalists, while Dudh Kharia are exclusively agriculturists in their primary economy.[18] The following dance patterns are prevalent among Kharias: Hario, Kinbhar, Halka, Kudhing and Jadhura.