Ganesha Chaturthi is the Hindu festival celebrated in honour of the god Ganesha. The festival, also known as Vinayaka Chaturthi, is observed in the Hindu calendar month of Bhaadrapada, starting on the shukla chaturthi (fourth day of the waxing moon period). The date usually falls between August and September. The festival usually lasts for 10 days, ending on Anant Chaturdashi (fourteenth day of the waxing moon period).
Traditional Hindu about Ganesha tell that Parvati, the consort of Shiva, created Ganesha out of sandalwood paste that she used for her bath and breathed life into the figure. She then set him the task of guarding her door while she bathed. Shiva, who had gone out, returned and as Ganesha didn’t know him, didn’t allow him to enter. After the combat between Ganesha and Shiva Ganas, finally angry Shiva severed the head of the child. Parvati seeing this became enraged and Shiva then promised that her son will be alive again. The devas searched for the head of dead person facing North, but they found only the head of an elephant. They brought the head of the elephant and Shiva fixed it on the child’s body and brought him back to life. Lord Shiva also declared that from this day the boy would be called Ganesha (Gana Isha : Lord of Ganas).
According to the Linga Purana, Ganesha was created by Lord Shiva and Goddess Parvati at the request of the Devas for being a Vighnakartaa (obstacle-creator) in the path of Rakshasas, and a Vighnahartaa (obstacle-averter) to help the Devas achieve fruits of their hard work.
Here are some Ganesha Idols for Ganesh poojan: