Trading in cryotos is tough in India, in general. The wallets don't necessarily track the global Bitcoin price accurately. Unocoin has a very dicey reputation (I was one of those affected, when they arbitrarily changed their terms and conditions and withdrew free bitcoins they had distributed as a promotion offering).
I don't think that bitcoin trading will be banned, but the government isn't for it, which means it will be heavily taxed at some point.