when China tried regulating their shady exchanges, some of them stopped all their work in China and moved outside of the country and continued there but not with the same power.
in case of India the same thing may happen but also it is worth having in mind that most of the Indian trading volume is coming from P2P trades where people don't even use any exchanges for example when they use localbitcoins to meet and trade. in which case the exchanges have a better chance of staying in the country and be regulated.
Thats very interesting, but the local trade element must be smaller volumes, how are they going to trade in different coins without an exchange?