Explanation:

Chhau dance, also spelled as Chau or Chhaau, is a semi classical Indian dance with martial, tribal and folk traditions, with origins in eastern India. It is found in three styles named after the location where they are performed, i.e. the Purulia Chau of Bengal, the Seraikella Chau of Jharkhand, and the Mayurbhanj Chau of Odisha.The dance ranges from celebrating martial arts, acrobatics and athletics performed in festive themes of a folk dance, to a structured dance with religious themes found in Shaivism, Shaktism and Vaishnavism. The costumes vary between the styles, with Purulia and Serakeilla using masks to identify the character.