Sales Invoice & Tax Invoice Print separately at the Same Bill

Haw Can I Print Sales Invoice & Tax Invoice separately against at the Same Bill.

You can not and question is why would you need to do that? In most instances all invoices now are tax invoices as required by local authorities.

A part from government approved software, VAT Chalan is applicable separately for other software.

So why not use a tax invoice? Why do you want an additonal different sales invoice that contains exactly the same information except for the label?