As the Finance Minister, Arun Jaitley, on 30th November 2017 stated, "The government's position is clear, we don't recognize this as legal currency as of now," . The reason behind this is that the Reserve Bank of India, along with the Government, concerns that virtual currencies like bitcoin are prone to multiple risks. Some of them including exchange platforms like Coinbase. As they get attacked by hackers being so popular, I don't think it is totally safe.