What is “Diwali night” ?
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 diyas to celebrate his return. This is the reason 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.