The Income Tax department has detected undisclosed monies of Rs 1.64 crore and other “inconsistencies” in its countrywide investigations into the sudden popping up of suspicious amounts in Jan Dhan accounts.The department has detected the suspicious activity in these accounts in banks in Kolkata, Midnapore, Ara (Bihar), Kochi and Varanasi even as officials said some other accounts in over half-a-dozen cities are under the scanner of the taxman.