Place of supply - performance based service

Goods are imported by XYZ, India from foreign buyer PQR . After receiving the goods, it is found that the goods are deficient in terms of its quality. Therefore, XYZ had performed some re – work / repair on it before putting it in to use. The re – work / repair charges were recovered from the foreign supplier PQR by issuing a Debit Note. Is XYZ required to pay GST on it? Sir, in my view, it will fall under Section 13(3)(a) of IGST Act i.e. services supplied in respect of goods which are required to be made physically available by the recipient of services to the supplier of services and accordingly since the repairs is performed in India, XYZ will be liable to pay GST. Please confirm.