In Ekdanta avatar, he had four arms, one tooth, a huge belly and his head was like an elephant. This avatar killed Madasur who after taking Shukracharya’s permission became a really powerful demon and started harming the Gods. The worried gods approached Sanat kumara and sought his advice to overcome their plight Sanatkumara instructed them to propitiate Lord Ekadanta and seek his protection.
He also described the glory of Ekadanta thus "Eka stands for Maya the “embodied". and Danta for Truth (Satta). Thus Ekadanta represents the Supreme Truth which wields the Maya." The Devas then meditated upon the Lord Ekadanta for hundreds of years. Pleased by their devotion the Lord appeared before them and assured them that He would remove their miseries.