At first, this totally depends on the Indian government. It is difficult to accept new technology and the same has happened in this case. Adopting such technology actually requires some technical knowledge and time to become aware of its positive uses. I think the decision taken earlier will be firm in this case and they will be interested in using it. Cryptocurrency is modern technology and over time it will become a part of every country's transactions. If they accept it, its use in India will be greatly appreciated.
It is very important to accept new technology to develop and be the first. If you will not accept the technology, if you will ban this technology, you will not develop and will not be the first, because another countries will accept the techonoly and they will develop. So I do not think that ban cryptocurrency is a good idea. The good idea is regulate and develop cryptocurrencies.