TDS ON PROPERTY

I have purchase a  under construction apartment  from a buyer (second party) at total consideration of 15950000  ( including 662605 GST).  In Builder Buyer  agreement value of apartment was 13914000 (including 662605 GST) I have paid Rs  8993000 to first  party. Balance I will pay to  builder  in installments. Today I paid 3350000 installment to builder. I need to 1%  as TDS on property. My query is  what amount I need to put in  TOTAL VALUE OF CONSIDERATION (PROPERTY VALUE) while paying TDS on installment  amount.    Will it be 15950000   OR  13914000 ??

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