1/ Lord Rama returned to Ayodhya after killing Ravana on Kartika Amavasya to be crowned, lamps were lit in Ayodhya & we celebrate Diwali- so goes

1/ Lord Rama returned to Ayodhya after killing Ravana on Kartika Amavasya to be crowned, lamps were lit in Ayodhya & we celebrate Diwali- so goes