Several months ago in my country, they banned the higher-denomination banknote, but not even they haven't achieved cover the demand of the new banknotes, even the ATMs need new configuration for these new banknotes, maybe adopt a cryptocurrency would be easier and cheaper. Because most transactions are made via POS.
You are from India and do you expect India to get corruption free? I mean your country is full of bunch of assholes who will even sell their mom and wife for the sake of money and you expect that bitcoin will replace paper money in your country?