I leave on Feb 6th for my first trip to India - 5 weeks in Mumbai on business. I'm a bit apprehensive about the beggars which are apparently very numerous in this city. Below are some of the things I've found during my research on this site and elsewhere. Does this match up with your experience? Is anything incorrect or missing?

1) Many beggars are part of organized begging rings and that most if not all of the money you give will end up in the bosses pocket.
2) Give to one and you may quickly find yourself swarmed by others.
3) If you have a weak spot for little kids (who doesn't?), keep a pocket full of candies to dole out. At least you know that will go to the child...
4) Dismiss agressive beggars by sharply saying "Nah-He!" once then avoiding any further interaction.