[11A Tax on goods supplied by contractee 

No tax shall be payable under this Act by a contractor on the amount representing the value of the goods supplied by the contractee to the contractor in the execution of works contract in which the ownership of such goods remains with the contractee under the terms of the contract and the amount representing the value of the goods supplied by the contractee to the contractor does not form part of the contract and is not deductible from the amount payable to the contractor by the contractee for the execution of the works contract.]