I am not going to disagree with any of the other commenters. (After all, it has been said that everything you think is true about India - the exact opposite is also true somewhere in India)
The question of trust is an important one, maybe even more than the issue of an economy which is developing (and hence making people more insular) - people on HN may not be aware, but there was a time (admittedly quite a few years ago) when there would be literally a news article every single day about the "biscuit bandits"- people who offered drugged cookies, which are usually called biscuits in India, and made off with the victims' valuables.
I just searched online for "biscuit bandits" and found this ironic story - although I don't know if it is true.
http://timesofindia.indiatimes.com/city/chennai/CBI-inspecto...
CBI is like the Indian FBI.
(edit: Changed funny to ironic. To answer webtechgal, I meant funny in an ironic sense. The problem had been going on for many years when this person who worked in law enforcement was victimized. If it is possible to dupe law enforcement in this way, one can only imagine how challenging it is for the regular folks)