@manansh
happy diwali!!
many stories behind this festival but a popular version goes like:
in the Ramayana (hindu epic), Prince Rama (divine hero) gets tricked out of his throne by his stepmother, forced to leave for 14 years
while living in the forest, Rama's wife Sita gets kidnapped by a demon king, Rama rescues her
after 14 years they come home to Ayodhya, everyone celebrates by lighting lamps to welcome them and mark good defeating evil = Diwali