Mehul,
Anyone walking around with a firearm in Kashmir would be very brave or stupid, given the current situation there. The bottom line is, there remains a cmplete ban. As far as nilgai in Northern India is concerned, the word Gai ie cow would explain what would happen if the locals caught you shooting one, other than the farmer whose crops are actually being damaged.
I do believe that human pressure on the tiger population, and the poaching of their natural quarry is the main threat to Tigers, not the actual poaching of the tigers. I for one would not agree with the hunting of these beasts, as the forests which provided 'fair chase' of these beasts simply do not exist anymore.
You need only to go to the Zambezi valley and see the sheer number of plainsgame and uninhabited areas to realise why hunting there is so good, and justifiable.
The main cause of tiger destruction in India is the poisoning of cattle lifters by local people.
I know that whilst I was there, a few weeks ago, the Lions of the Gir forest were wandering into villages looking for food, this was put down to their increasing numbers in a very small area of natural habitat.
M.