Property tax deduct from st calculation

The property tax of RS.182000 paid on 19/07/2012 for the period Oct to Mar 2011-12. During the year the service provider  was not deducted from the gross amount rent received and excess service tax paid. So the excess service tax paid deducted in the year 2012-13 third qurter oct to dec 2012. Is it correct or not? and if  the details of self adjustment intimate to the service tax dept within 15 days.