Ganesha is also known as Ekdanta, or the one with one tooth, because one of his tusks is broken. The reason for this, according to the Padma Purana, is that one-day when Shiva was sleeping, Parashurama came to visit him. However, Ganesha would not allow Parashurama in, for his father's sleep would be disturbed. When Parashurama insisted he be permitted entry, a fight broke out. In the course of their struggle, Parashurama threw his axe at Ganesha. This axe had been given to him by Shiva. Recognising the axe and out of reverence for his father, Ganesha refused to intercept the weapon. He bowed and took its impact on one of his tusks, which broke.
Parashuram is one of the anshavatar of Vishnuji. His entry is expected before Ravan.