text: Ganesha and Parashurama One day, Parashurama, an avatar of Vishnu, went to pay a visit to Shiva, but along the way he was blocked by Ganesha. Parashurama hurled himself at Ganesha with his axe and Ganesha (knowing that this axe was given to him by Shiva) allowed himself, out of respect for his father, to be struck and lost his tusk as a result.
  Curse of the Moon on Ganesh Chaturthi
  Ganesha and the Moon
  After coming back from the feast at Kubera's palace, Ganapati was riding on his mouse Dinka on the way home. It was a full moon that night. As he was riding, Dinka saw a snake and ran behind a bush. Ganapati fell to the ground, and his stomach broke open. Ganapati started to put the food back in his stomach. The moon god Chandra saw him and started laughing loudly. Angered by this, Ganapati pronounced a curse on the moon god: "You shall be always black and never be seen by anyone." Frightened by the curse, the moon god started pleading for mercy. Ganapati said "Okay, but you shall be changing from new moon to full moon. Also if anyone sees the moon on my birthday, he or she shall not attain moksha (liberation)." The moon god kept quiet. After Ganapati had finished putting the food in his stomach, he took the snake and tied it around his belly. Then he continued back home.
  Head of the celestial armies