Diwali (also spelt Divali in other countries) or Dīpāvali (Tamil: தீபாவளி, Gujarati: દિવાળી, Hindi: दिवाली, Kannada: ದೀಪಾವಳಿ, Konkani: धाकली दिवाळी, Malayalam: ദീപാവലി, Marathi: दिवाळी, Nepali: दिपावली, Oriya: ଦୀପାବଳୀ, Sanskrit: दीपावली, Telugu: దీపావళి, Urdu: دیوالی), also popularly known as the Festival of Lights, is an important 5-day festival in Hinduism, Sikhism and Jainism, occurring between mid-October and mid-November. Diwali is an official holiday in India [1], Guyana, Trinidad & Tobago, Malaysia, Nepal, Singapore, Sri Lanka and Fiji. The name Diwali is itself a contraction of the word Dīpāvali दीपावली (Dīpāvali), which translates into row of lamps (din Sanskrit)[2]. Diwali involves the lighting of small clay lamps (divas) (or Deep in Sanskrit: दीप) filled with oil to signify the triumph of good over evil. During Diwali celebrants wear new clothes and share sweets and snacks with others. Some Indian business communities begin the financial year on the first day of Diwali wishing for good luck the following year. In Hinduism, Diwali marks the return of Lord Rama to his kingdom of Ayodhya after defeating (the demon king) Ravana, the ruler of Lanka in the epic Ramayana. It also celebrates the slaying of the demon king Narakasura by Lord Krishna. Both signify the victory of good over evil. In Jainism, Diwali marks the attainment of moksha by Mahavira in 527 BC.[3][4] In Sikhism, Diwali commemorates the return of Guru Har Gobind Ji to Amritsar after freeing 52 Hindu kings imprisoned in Fort Gwalior by Emperor Jahangir; the people lit candles and divas to celebrate his return, which is why Sikhs also refer to Diwali as Bandi Chhorh Divas, “the day of release of detainees”.

Diwali is considered a national festival in India and Nepal.Diwali is celebrated for 5 days according to the lunar Hindu Calendar. It begins in late Ashwin (between September & October) and ends in early Kartika (October–November). The first day is Dhan Teras. The last day is Yama Dvitiya, which signifies the second day of the light half of Kartika. Each day of Diwali marks one celebration of the six principal stories associated with the festival.[5]. While Diwali is popularly known as the “festival of lights”, the most significant spiritual meaning is “the awareness of the inner light”. This is the biggest festival in North India and is mostly celebrated in North indian regions of Uttar Pradesh, Rajasthan, Haryana, Madhya Pradesh. Central to Hindu philosophy is the assertion that there is something beyond the physical body and mind which is pure, infinite, and eternal, called the Atman. Just as we celebrate the birth of our physical being, Diwali is the celebration of this inner light, in particular the knowing of which outshines all darkness (removes all obstacles and dispels all ignorance), awakening the individual to one’s true nature, not as the body, but as the unchanging, infinite, immanent and transcendent reality. With the realization of the Atman comes universal compassion, love, and the awareness of the oneness of all things (higher knowledge). This brings Ananda (inner joy or peace).