Service tax query

Manoj Punjabi (Accountant) (257 Points)

07 November 2012  
Sir
Earlier there was six monthly returns.
we paid our service tax monthly on time, but after six month finalisation we came across mistakes and additional service tax for period April 12 to Sept 12 was paid in Oct-12 - the difference is of six months paid in one challan.
 
now service tax returns are changed to quarterly. My question is how do I show the amount and details of challan of difference of April-12 to Sept-12.
 
If I show it in Q1, then I cannot show this in Q2. However this challan contains the difference of six months in total. i.e. Q1 & Q2 both.
 
Please guide me urgently. Our service tax returns are pending due to this point.
Manoj Punjabi