For India, the transition to digital technology and the circulation of only non-cash electronic money is absolutely unrealistic. This country is relatively poor and unprepared for such cardinal changes in the field of finance. In this country, the problem of cryptocurrency circulation is still not solved. The introduction of cryptocurrency is very opposed to the central bank of this country. And the population itself is not ready for such drastic changes.
As far as I know, India now is working into becoming a cashless society, I don't think so if they are not unprepared of this but their government was planning a revolutionizing payment system and lead to a cashless society. The Reserve Bank of India(RBI) was revolutionized the payments systems through mobile base payments, debit cards, and the E-wallet system.
I think they are having an upcoming development in their country to have as huge benefits in reducing cash transactions and a move towards digital payments like having ATM cards.