I think this human stories that need to be documented and preserved. Chhau dance is a very famous Tribal dance in the Indian State of West Bengal. The dance form uses masks and exhibits the spontaneity of folk art. This dance form is sustained and developed by the people of Purulia.The masks represent characters from the Hindu mythology. Chhau dancers perform mythological events like Mahisasura Mardini, where the Hindu Goddess Durga kills Mahishasura.