Diwali (also spelled Devali in certain regions) or Deepavali, popularly known as the "festival of lights," is primarily a five day Hindu festival. Diwali is one of the most important festivals of the year and is celebrated in families by performing traditional activities together in their homes.
Diwali involves the lighting of small clay lamps filled with oil to signify the triumph of good over evil. These lamps are kept on during the night and one's house is cleaned, both done in order to make the goddess Lakshmi feel welcome. Firecrackers are burst because it is believed that it drives away evil spirits. During Diwali, all the celebrants wear new clothes and share sweets and snacks with family members and friends.