Not just that: the issuer – so in the euro’s case, the Eurosystem – takes collateral from its monetary policy counterparties as a “deposit” for providing euro currency. That indirectly anchors the euro in the real economy. Virtual currencies, by contrast, have no issuer, no footing in the real economy. No one has to redeem them.
They are  increasingly being recognised as a means of achieving financial inclusion and ensuring that economic benefits reach the bottom of the pyramid. It is quite well known by now that India is among the leaders in the world with regard to development of state-of-the-art payment infrastructure and products leading to a wider adoption of digital payments.