URGENT QUERY(SERVICE TAX) ?????

SERVICE TAX & VAT BOTH ARE APPLICABLE ON SALE OF SOFTWARE.
HOW TO CHARGE SERVICE TAX & VAT ON SALE OF SOFTWARE ?
WHETHER VAT IS TO BE CHARGED ON GROSS BILL INCLUDING SERVICE TAX OR EXCLUDING SERVICE TAX ???
 The first point is whether VAT + ST can be charged on the full amount. Though big players doing that, there is a legal lacunae as ST and VAT are mutually exclusive. As per TCS case - SC only VAT payable. The insertion of the entry in 2008 and amendment in 2009 in my view is illegal. This anyway has to be confirmed by the courts to be relied on.

If chosen to pay then only on basic amount should VAT or ST be charged.