Tds on works contract

I am in delima that whether the amount on which TDS is liable to deduct is inclusive of VAT & excise or not.

Suppose in case of works contract supplier charge both excise and VAT in invoice.

Invoice value  =  100

excise duty  =    12  (assume)

Value           =   112

VAT             =     15 (assume)

Toatl            = 127

So my question is that on which amount TDS u/s 194C will be attract.