Tds on advertisment bills

dear sir, an invoice of advertisement advertisement charges : 2,83,500/- Service tax @ 2.25% : 6,379/- Total Payable Amount : 2,89,879/- TDS 1% (Proprietorship firm) to be deducted but I want to know on which amount TDS to be deducted ? 1. Advertisement Amount Only ? or 2. Advertisement + Service tax Amount ? please help me.