I disagree. Crypto cureencies helps people to go off the government records as they are decentrelized. Black money cannot be controlled/accounted using crytocurrencies. Instead government can benefit by taxing the white money crypto user profits. Also, a legal recoganization will encourage crypto based projects in India. If this rules is enforced forever(i doubt that though), the goverment will end up making black money hoarders out of law abiting citizens.