Penal interest @1.5 % for late payment of tds

raj shome (Student CA Final ) (62 Points)

02 July 2013  

TDS for 4th Quarter of 2012-13 amounting to Rs.75000 was not deposited on or within 30-04-2013(due date); instead it has been deposited on June'13(ie, 28-06-2013 to be exact).Owing to this, interest @ 1.5% SHOULD to be deducted.However the same was not deducted.

Please advise the rate of 1.5%p.m is to be applied for  how many months for calculating the net figure of TDS.