Calculate interest and penalties

Mayank (Accontant) (57 Points)

07 November 2012  

Hello to all,

Pls help me to solve the following issue (with support of legal provision),

 

Mr. X are to be paid service tax for 1st half 2009-10, Rs. 100000. At that time prevailing interest rate was @ 13% and penalties was maximum Rs. 2000. But now applicable interest rate is 15% and penalty maximum 20,000. He paid his dues on 06th nov 2012. what is amount of Interest and Penalties. (My concern, should the interest paid / payable according to old provisions relevant to Year 2009-10 only or should I consider new provisions too. If yes then how.)