Lakshmi Puja is celebrated in the month of September or October during the Diwali festival mostly in North and Eastern India.
Lakshmi is the Goddess of wealth, health, peace, prosperity, and love. People clean and decorate their houses on the occasion as it is believed that Goddess Lakshmi will go only clean houses and bless them with wealth and prosperity. People offer vermilion, turmeric, and flowers to the idol. Goddess Lakshmi and Lord Ganesha are worshipped together in most places as it is considered fortunate and wisdom and wealth come together. At night lamps are lightened to welcome the goddess.
