Diwali is a major Hindu festival celebrated in India that involves the lighting of lamps. It commemorates Lord Rama's return to Ayodhya after 14 years in exile and symbolizes the victory of good over evil. During Diwali, people wear new clothes, light oil lamps outside and inside their homes, draw colorful rangoli designs, light fireworks, share sweets and gifts with family and friends, and worship Lakshmi, the goddess of prosperity.