Service tax return

Our Company has not paid service tax since 2011.  He made part payment in Mar11 & Part payment in Oct'12.  He paid the balance payment on 31.12.13(Single Chalan for 2011-12&2012-13 Period) during the VCES-1.  CENVAT is "ZERO" during the period.Now I am going the file return for that period.  Can you help how to fill the Tax paid details in cash. Can I add the December'13 Tax paid details or I have to show the balance Service tax liability to be paid.