The implementation of the move was not neat as the banks did not have regular supplies of currency, nor was it known that the ATMs were not compatible with the new notes. The quantum of circulars that were issued by RBI in the period of two months or so was just too high and gave the impression that there was no concrete plan in place to implement the same as rules were fine-tuned depending on the responses of the public. Quite clearly the banking system was not prepared for this process and while the surprise element was required to catch the wrong doers (terror, black money, counterfeit) the inconvenience caused to over a billion people was unnecessary. The incongruity of the exercise was that while it was argued that black money resided in high-value currency of ₹500 and ₹1,000, they were replaced with ₹500 and ₹2,000 notes! It should have been in only lower denomination notes in case the argument had any serious merit.