Incomes tax tds on property

I noticed something new with my From 16B. If the installment amount was 1,00,000/-. I file TDS as below: Installment paid: 99,000 TDS % : 1 TDS amount: 1000 I even paid 1000. But not in 16B I see Rs990/- as the amount in tax deducted. Why is it taking 1% of the installment paid and not the amount I paid. Appreciate your help in understanding what is wrong and how can I get it corrected.