The third avtar of Lord Vishnu is known as Lord Varaha. This avtar is
in the form of a boar who was sent to defeat Hiranyaksha, a demon who
had carried the Earth to the bottom of the cosmic ocean. The battle is
believed to take place for thousands of years and Lord Varaha won the
battle. Lord Varaha has the face of a boar and a man's body. The avtar
depicts the reconstruction of the Earth from a deluge and the
establishment of a new cycle. Lord Vishnu married Bhudevi [Prithvi] in
this avtar. 
