If you've got no spectacular plans besides watching the traffic from your balcony, here's something nice and fun where you could join in and spread some Diwali joy.
Via SMS from a friend:
"Volunteers required for a Diwali party being organized for some poor kids. No money needed, just be present and mind the kids. This Sunday, starting 3 pm. at a location in Thane".Interested? Drop me a line. Will connect you up!