http://www.sscnet.ucla.edu/southasia/Culture/Festivals/Diwali.html
“As with other Indian festivals, Diwali signifies many different things to people across the country. In north India, Diwali celebrates Rama's homecoming, that is his return to Ayodhya after the defeat of Ravana and his coronation as king; in Gujarat, the festival honors Lakshmi, the goddess of wealth; and in Bengal, it is associated with the goddess Kali.
Sorry. I don’t think the God of the universe looks kindly on sharing His services with false gods. This is a little more than an Easter egg.