Diwali is a five-day Hindu festival known as the "Festival of Lights" that celebrates the victory of light over darkness. It is celebrated in early autumn based on the lunar calendar, falling between mid-October and mid-November. The main celebrations involve performing puja (prayers) for Lakshmi, the goddess of wealth and prosperity; decorating homes with diyas (oil lamps), rangoli designs, and lights; sharing feasts with family and friends; lighting fireworks; and exchanging gifts. Diwali commemorates historical events including the return of Rama and Sita to Ayodhya after defeating Ravana and the killing of the demon Narakasura