Dīvali (or Dīpāwali, often written Deepavali) (Hindi: दीपावली, दिवाली; Urdu: دیوالی; Tamil: தீபாவளி; Telugu: దీపావళి) is a significant festival in Hinduism, Sikhism, Buddhism, and Jainism, and an official holiday in India. Adherents of these religions celebrate Diwali as the Festival of Lights. They light diyas—cotton string wicks inserted in small clay pots filled with oil—to signify victory of good over the evil within an individual.
In Hinduism, across many parts of India and Nepal, it is the homecoming of Rama after a 14-year exile in the forest and his victory over the Ravana.In the legend, the people of Ayodhya (the capital of his kingdom) welcomed Rama by lighting rows (avali) of lamps (dĭpa), thus its name: dīpāwali. Over time, this word transformed into Divali in Hindi and Dipawali in Nepali, but still retained its original form in South and East Indian Languages.