It's not so much what you learn about Mumbai it's what you learn about yourself really. It's a funny old hippie thing but it's true as well. You find out a lot about yourself and your tolerance and about your inclusiveness.
There was a phase in my career in my late 20s and 30s when I was doing strange, arty-farty Euro films that were, you could tell, never had much chance of any release anywhere in the world.