In Hinduism, Bhasmasura (Sanskrit: भस्मासुर, Bhasmāsura) is an asura or demon, who was granted the power to burn up and immediately turn into ashes (bhasma) anyone whose head he touched with his hand.
The asura was tricked by the Vishnu's only female avatar, the enchantress Mohini, to turn himself into ashes.
Pleased at the great devotion of the demon towards him, Shiva agreed to grant a boon of his choice.
Vishnu assumed the form of the ravishing Mohini, an attractive dancer, who allured him with her charm, and initiated a dance called the Muktanṛtya.
Based on the popular story, the dancers take different postures leading to them ultimately revolving both their hands on their heads.