St3 return with mismatch figures

Hi,

How should the service tax paid amounts actually shown in the ST3 return? All the ST amount paid in a particular month should be shown in that particular month column or amount paid related to the invoices in that month?

I mean if service tax for the invoices raised in Sept is paid in October then in the April-Sept return, should the ST paid in Oct be shown to tally the Paid and Payable figures or it should be shown only in next return?

Please guide.