Confusion on TDS on sale deed

Hello, I am purchasing a property from a NRI for which he has not yet taken posession. In that assignment agreement was done by the builder mentioning X amount paid by the seller (Assignor) to builder and 1.X (Y) amount paid the buyer to seller. So 0.1X (P) is profit (assignment charge) of seller. Seller has paid TDS on our. 8X (Z) (considering 0.2X is GST, Club house and other charges). Buyer need to deduct TDS as per capital gain for NRI but almost nil gain for seller but still income tax officer or AO provided certificate to deduct TDS at 1% on purchase price (1% of Y). In Sale deed, builder has mentioned value of property (Z+P) & TDS paid at (Z+P) but actual deducted by buyer is based on Y which is more than (Z+P). Stamp duty and everything would be paid on (Z+P) not on Y. Builder does not mention GST, club house and other charges in sale deed and show TDS only on land & construction cost. My question is that whether it is fine to show TDS on sale deed excluding GST, club house etc etc but actual TDS deducted at NET Price which is Y. Y = Z+P+O (O= other charges) Your quick help on this would be really appreciated as we are registering tomorrow only.