This Puja is done during Deepavali and start of a new business in new pemises. Diwali is the festival of Laxmi, the Goddess of prosperity and wealth. Ganeshji is a must for Diwali pooja as he is to be worshiped in all pujas before any other god or goddess. Traditionally on Diwali night, Ganesh shares the altar with Lakshmi. Shree Ganesh is the god of good beginnings and the fabled remover of obstacles. In the Hindu pantheon, the two are unrelated, Ganesh being the son of Shiva and Parvati. However, when placed side by side, Lakshmi Ganesh hold out promise of a year of fulfillment, free from wants.