its not crypto or block chain based…its same fiat currency.. al the motive is to reduce inter banking costs and paper money printing costs… its just rupee in digital format…become E-rupee… it only worth mentioning if govt fully confidently says its backed by block chain…at this time i didnt see any where govt is saying that confidently..  as it is not decentralized digital currency no one have full ledger…so all powers in the hands of who is in govt… unlike crypto…its on