What I think is, if the Indian government bans bitcoin then the people will find an alternative method to use bitcoin which might corrupt India further.
So in a way, what Tim said might actually become true and yes it is possible that alternative methods will be found to continue using bitcoin in India if at all it is banned.
Banking ban is still in force mate! So in a way, bitcoin or another crypto trading is banned in India! But does that mean, people have stopped using that? Not at all, p2p tradings are ongoing in full force and people are making good amount of profit from it. So alternative method is already there! In the meantime, Indian government is loosing on taxes and job opportunities big time!
No legality can stop bitcoin and its trading. If method A is banned, people will be using method B! There's always a contingency plan available in the world of blockchain!