Diwali is the Hindu festival of lights, with variations celebrated in other Indian religions. It symbolises the spiritual "victory of light over darkness, good over evil, and knowledge over ignorance". Diwali is celebrated during the Hindu lunisolar months of Ashvin and Kartika—between around mid-September and mid-November. The celebrations generally last five or six days.

Kārtika is the eighth month of the Hindu calendar, which falls in October and November of the Gregorian calendar. In India's national civil calendar, Kartika is the seventh month of the year, beginning on 23 October and ending on 21 November.