Recently I went to Mumbai with a team from Facebook to do development research, and it was truly wonderful. I've never smelled anything like it.
The research we shot is of course classified, but I'm able to post an immersion video we produced.
Lessons learned in Mumbai include-
1. Beware of the monkeys. They will snatch your juicebox if you let them.
2. We need sweet trucks like this in NYC. Not my field, but I'm putting it out there.
3. We need ways to know more certainly which bathroom to go into. India has it nailed down.
4. Count your blessings. There is immense poverty in this world, try to help where you can.
The Facebook team was amazing, being around such bright and tactful people is always a huge treat. I feel as though I didn't get the classic India experience as I only went to Mumbai (which is a bit of an urban corner case), so I hope I can return one day and see more of it.