This particular situation would not have happened with an expat crew.
I've flown with Indians, both flight deck and cabin crew. I've found them to be some of the best in the industry, but also some of the worst.
Indians tend to be very aggressive in general, the ones from Delhi in particular. Put the right mix in an aircraft and this is the result.
I nearly had a riot on board my Delhi flight, simply because Delhi was closed (fog) and we had to divert. I almost got attacked by some of the pax after landing in BOM.
It's not only in India, but more likely to happen there than anywhere else, IMHO.
Oh and, there is China as well...