There is no actions about the crypto currency in India and only there is banking ban which is still unclear yet.
Black money is more of a problem in countries such as China and Russia and yet they have managed to achieve good level of economic progress. The reason for economic stagnation in India is resulting from fiscal deficit, which is in turn caused by the wasteful spending by the government. Freebies are being given like never before and the small salaried class is getting more and more burdened with the taxes.
A country will never be able to progress until the majority of the population pays taxes. In India a very small fraction pays income tax (may be 3% or 4%), while the remaining lives off freebies from the government. Since the tax base is so low, the government is forced to levy very high indirect taxes (GST, VAT, excise duties.etc), which is further impacting the health of the economy.