IGST-TDS under High Sea Sales

We have given Purchase Order to a party 'A' for procurement of a particular item under high sea sales.
We are the final buyer.
Then A has cleared the consignment and paid basic custom duty plus swc and igst as per bill of entry. And same has been reimbursed by us to A.
Now, igst-tds should be deducted from their payment on high sea sale invoice or not?