This exactly what Arun Jetlag said word to word about crypto
Distributed ledger system or the block chain technology allows organization of any chain of records or transactions without the need of intermediaries. The Government does not consider crypto-currencies legal tender or coin and will take all measures to eliminate use of these crypto-assets in financing illegitimate activities or as part of the payment system. The Government will explore use of block chain technology proactively for ushering in digital economy.
Full paper is available here >
https://www.scribd.com/document/370488687/Budget-2018-full-text#fullscreen&from_embed