Vasuki (also known as Vasuki Nag) is the second king of snakes after Sheesh Nag who is Vasuki Nag's elder brother in Hinduism. Sheesh Nag is also associated with Lord Vishnu. Vasuki Nag too is associated with the 6th Avatar of Lord Vishnu that is Krishna. It is said that Lord Krishna had Nartan (danced) on Vasuki Nag's Head. Vasuki Nag had 1000 heads. Vasuki Nag is also said to be mounted on Lord Shiva's neck.