Ganesh Chaturthi is a ten-day Hindu festival celebrated to honour God Ganesh's birthday. He is the younger son of Lord Shiva and Goddess Parvati.
There are two different versions about Ganesh's birth. One has it that Goddess Parvati created Ganesh out of dirt off her body while having a bath and set him to guard her door while she finishes her bath. Shiva who has gone out, returned at that time, but as Ganesh didn't know of him, stopped him from entering. An angry Shiva severed the head of Ganesh after a combat between the two. Parvati was enraged and Shiva promised Ganesh will live again. The devas who went in search of a head facing north of a dead person could manage only the head of an elephant. Shiva fixed the elephant's head on the child and brought him back to life. He is honoured at the start of rituals and ceremonies as he's considered the God of beginnings. He's widely and dearly referred to as Ganapati or Vinayaka. Ganesh puja during the auspicious occasion of Ganesh Chaturthi increases the effect of this puja manifold.

☉ The worship of Lord Ganesh brings good fortune to one’s personal and professional life.
☉ This puja helps one become wise and knowledgeable.
☉ The souls of the worshipers are purified by the grace of Lord Ganesh.
☉ Financial difficulties are resolved easily by performing Ganesh puja and one can gain great success in their business.