Section 15. Value of taxable supply
(1) The value of a supply of goods or services or both shall be the transaction value, which is the price actually paid or payable for the said supply of goods or services or both where the supplier and the recipient of the supply are not related and the price is the sole consideration for the supply.
(2) The value of supply shall include–––
(a) .................
(b) any amount that the supplier is liable to pay in relation to such supply but which has been incurred by the recipient of the supply and not included in the price actually paid or payable for the goods or services or both;
So the addition to supply is as per Sec 15 (b)
Now Rule 37 which talks about Reversal of input tax credit in case of non-payment of consideration has the following proviso in sub rule 1
Provided further that the value of supplies on account of any amount added in accordance with the provisions of clause (b) of sub-section (2) of section 15 shall be deemed to have been paid for the purposes of the second proviso to sub-section (2) of section 16.
Second proviso to Sub section (2) of Sec 16 is as below
Provided further that where a recipient fails to pay to the supplier of goods or services or both, other than the supplies on which tax is payable on reverse charge basis, the amount towards the value of supply along with tax payable thereon within a period of one hundred and eighty days from the date of issue of invoice by the supplier, an amount equal to the input tax credit availed by the recipient shall be 7[paid by him along with interest payable under section 50] in such manner as may be prescribed:
Now the answer to the question: Is there any possibility that the GST department can dispute such indirect payment and ask to reverse ITC?
Absolutely No possibility as the provisions are very explicit