A famous snake. He once took the sage Chyavana to patala. Chyavana had visited the Nakuleshwaratheertha on the Narmada and was then bathing in the river. The snake started dragging him, but the sage prayed to Vishnu and the venom didn’t affect him. But the snake dragged him into patala and finally left him there since the venom was not effective. Chyavana went to Prahlad’s palace. As per Prahlad’s request, the sage told him about holy places and that was how Prahlad visited Naimisharanya as per Vamanapurana Chapter 8.