Very urgent interest calculation of service tax payment

How to calculate interest for late of service tax is interest calculate separately for Service tax, education cess & higher cess since all of these have difference code for interest payment eg.



Service tax 7000.00 code 197

Edu Cess 140.00     Code 298

Higher Cess 700.00 code 426

Please calculate interest on above mentioned eg. if last date of payment is 31 st March 2012







thanks

7000+140+70*11/366 days(if u are paying today)

But this amount will be bifurcate in edu cess or high cess or not 

For interest there is a single code and it will not be bifurcated to education cess and S & H Cess