Six days after the December 30 deadline for banned 500 and 1,000 rupees to be deposited in commercial banks, the Reserve Bank of India said "it is still counting the returned notes."News agency, Bloomberg, had quoted unnamed sources to report that Rs. 14.97 lakh crores or 97 per cent of the banned currency had returned to the banking system. If that is true, it would suggest that the government's abrupt demonetisation drive has failed to uncover and destroy black money.