The Reformation of Demon Duraasadana
When Lord Shiva and Goddess Parvati killed Bhasmasura the demon, his son demon Duraasadana was very angry. He performed a long tapasya and obtained the boon of immortality from Lord Shiva. Scared by this, all the gods left heaven and hid in Kashi. Demon Duraasadana followed them to Kashi and so they went to Kedarnath. There, the gods prayed to Goddess Parvati. An avatar of Lord Ganesha, Lord Vakratunda, with five faces and ten hands, came out of Goddess Parvati's face. She gave him a lion to ride. Lord Vakratunda went and fought with Demon Duraasadana. He assumed his huge form (viswaroop) and placed his foot on Demon Duraasadana's head to remove all his evil thoughts. Demon Duraasadana was reformed and Lord Vakratunda gave him the duty of removing evil, henceforth.