Section 45IB(3) in The Reserve Bank of India Act, 1934
(3)If the amount invested by a non-banking financial company at the close of business on any day falls below the rate specified under sub-section (1), such company shall be liable to pay to the Bank, in respect of such shortfall, a penal interest at a rate of three per cent. per annum above the bank rate on such amount by which the amount actually invested falls short of the specified percentage, and where the shortfall continues in the subsequent quarters, the rate of penal interest shall be five per cent. per annum above the bank rate on such shortfall for each subsequent quarter.