Why should India legalize digital currency

In twenty first century, digital currency or crypto currency is the major revolution which affiliated in the supisition of investment. If a person is dedicated and working got damn hard on cryptocurrency he will surely get huge return. Digital currency is a platform which gives immense possibilities and huge Return Of the investment done by the customer. For example 9 years back in 2009 a digital currency which was evoluted and started which was named as BITCOIN. Bitcoin was founded by Satoshi Nakamato. Satoshi nakamato is a virtual name, American enterpenuer Craig Wright is the creator of the virtual currency, Bitcoin when it started in January 2009. From January 2009 to March 2010 the price of bitcoin was basically nothing but today on July 2018 the rate of One bitcoin is $6496.03 (4,33,000 INR)
So the cryptocurrency is giving massive return but in this investment are huge...