The rupee is inflated and buying
bitcoin in India has been popular for awhile. Government can't "ban" it because people already use anonymous exchanges to buy and sell bitcoin there. Unless they want to claim everyone is a criminal and try to find how everyone stores private keys...good luck.
The problem for the government and banks in India is that the corruption has gone on for decades and won't stop without something like bitcoin becoming currency.
that corruption is exactly why they are creating road blocks for bitcoin's adoption. and this has been going on at least 2 years now. i believe it mainly started when they invalidated their large bank notes back in 2016 and there was chaos in the country and people couldn't have access to their own money because of this and many started their exit, some through bitcoin.