Lord Ganesha or Ganpati is one of the most popular deities in the Hindu religion worshiped by both Shaivites and Vaishnavites. Ganesh Chaturthi is celebrated on the 4th day of the bright half of Bhadrapad. This festival marks the birthday of Lord Ganesh.
On the occasion of the Ganpati festival, a large number of idols are made of clay or metal in all possible sizes; sometimes even up to twenty feet. People buy idols of Lord Ganesha and install them in their houses and worship the idol for one to ten days, after which the idols are taken out ceremoniously, through the streets of the town (especially in Maharashtra) and immersed into the river, sea or well. Even Buddhists and Jains have faith for Ganpati. He is considered to be an avatar of both Shiva and Vishnu.