Diwali festival season starts with Durga Puja. Durga Puja is celebrated during same time as Vijaya Dashmi..
Badi Diwali is celebrated in East India - Fireworks, Laxmi Puja, Sweets, Gifts. Day One-Dhanetras:
On this day, the people of North India buy gold and silver vessels, ornaments, etc., on Dhanetras. It is the day of Kuber and considered auspicious to buy some tangible goods.