Lakshmi Puja the central day of Diwali, occurs on new moon day (Amas), Aso vad 15, the last dark day of Aaso. (15th day from full moon day when moon disappears). Celebrated in all parts of India. Diwali is the last day of the Hindu year and people go to temples and thank the gods for the wonderful previous year. People wish a Happy Diwali to neighbors & relatives via cards (recently SMSs/emails/calls). The whole day is considered as the last day to prepare for the coming new year. People explode expensive fireworks throughout the entire night. Mostly natives perform special puja(worship) of the goddess of Wealth 'Laxmi'. The houses are decorated with diyas specially in open spaces opposite the front door. Even rangoli is prepared around the lit diyas.
Read more about this topic: Diwali In Gujarat