Ganesh Chaturthi, the birthday of Lord Ganesh, is celebrated in August-September. Ganesh is the elephant headed son of Goddess Parvati, consort of Lord Shiva.
In Maharashtra, it is most important festival and is celebrated for 10 days. It is celebrated from 4th to 14th day of bright fortnight of Bhadrapad month. In Tamil Nadu, Maharashtra and Andhra Pradesh, images of Ganesh made of unbaked clay are worshipped on this day in every house.
A special sweet called Modak is prepared on this occassion. To mark the end of the festivities, the clay idols are immersed in water.