Lord Ganesha is worshipped first at the start of any occasion for giving it an auspicious beginning! Ganesha is known to be the God of wisdom, peace and knowledge. He is also known as Vighnaharta and it is believed that he takes with himself all the suffering when the visarjana takes place. People believe staunchly that worshipping him will free them from all the hardships of life and they can thus get the ultimate happiness in life.
It is known that Lord Ganesha was very much fond of the number four called Chaturthin in Sanskri and that is why this day is celebrated as Ganesha Chaturthi. On this day the Moon is not considered to be good and people should refrain from seeing the inauspicious moon on the day of Ganesha Chaturthi. Puja rituals say that those who are on fast on this day should worship Moon without looking at it.
Here is the Procedure used employed to worship Lord Ganesha on this day!Those who keep fast on this day should get up early in the morning and take bath first. Thereafter, they should take resolution by taking grass and water in hands and chanting the mantra as "Mam Sarvakarmsiddhaye Siddhivinayak Pujanmaham Karishye". On this day, Ganesha idol made from Gold, copper and mud is worshipped. A pot filled with water is tied with a cloth on to its mouth and the idol of Lord Ganesha is put over it. After that a 16 fold procedure is followed to worship the idol kept therein.
Aavaahana: It means to invite.Generally, Human community does not believe in fasting on this day but usually people from South India keep fast in the want of a happy married life and for removing any kind of obstacle from the way of a successful life. The fast ends after one offers Puja to Lord Ganesha on the next day morning in a temple or at home.