Once there was a man named Supriya, who was a dedicated devotee of Shiva. He worshipped Shiva day and night.

Daruk, a cruel demon who lived nearby, did not like Supriya's devotion. In some way or the other, he wanted to hurt Supriya and was always thinking of devious ways of doing so. One day, he went with the other demons and captured the boat in which Supriya was travelling. But Supriya was not affected by this. He made a Shivalinga on the boat and started worshipping it. When Daruk saw this, he ordered the other demons to kill all the people on the boat.

All of a sudden, Shiva appeared and killed the demons. Shiva then gave Supriya a divine weapon, the Pashupatastra, with which he killed Daruk.

The Shivalinga which Supriya had made is still present in Dwarkapuri, Gujrat and is worshipped as Nageshwara.