maybe if India will legalized these cryptocurrencies.To become this as commodity,these cryptocurrencies would be regulated by the local government by providing laws and also the banks will provide procedures on how to manage these cryptocurrencies in every bank transactions.Cryptocurrencies can be used as local currency which are now available anytime of the year,which also brought a high demand on cryptocurrencies and other alternative coins.
India never declared cryptocurrencies as illegal. All it did is asked regulated financial institutions, like banks, to stay away from it.