According to a song sung by the velans, Vishnu in the form of Mohini deceived the daityas and gave the amrut (obtained by churning of the milky ocean) to the devas. The daityas complained to their preceptor, Shukra, who cursed Vishnu for deceiving daityas. Due to the curse, Vishnu became weak, sick and inactive. The worried devas consulted Subrahmanya, who checked the position of the planets. He declared that a ritual has to be performed by Velans to revive Vishn . In spite of searching the whole world, devas could not locate Velans. As advised by sage Narada, the devas went to Kailasa and informed Shiva about vishnu's condition. Shiva and Parvati appeared as Velan and Velatti. They performed the first Pallippana with eighteen great rituals and revitalized Vishnu. Shiva created Velans to remove the bad effects of curses from the world by conducting Pallippana.