Value of supply of goods or services where the consideration is not wholly in money :
Where the supply of goods or services is for a consideration not wholly in money, the value of the supply shall be as follows [rule 1 of Valuation Rules]
(a) be the open market value of such supply.
(b) if open market value is not available, be the sum total of consideration in money and any such further amount in money as is equivalent to the consideration not in money if such amount is known at the time of supply.
(c) if the value of supply is not determinable under clause (a) or clause (b), be the value of supply of goods or services or both of like kind and quality.
(d) if value is not determinable under clause (a) or clause (b) or clause (c), be the sum total of consideration in money and such further amount in money that is equivalent to consideration not in money as determined by application of rule 4 or rule 5 in that order.