I enterred into an agreement to sell the property in Mar 2015 and received advance for the same. TDS of Rs. X was deducted on Advance
The balance amount was received in June 2015 when the property was registered. TDS of Rs. Y was deducted on Balance amount as well
For AY 15-16: I carried forward the amount of TDS of Rs. X to the next AY as the property was sold in next AY. The ITR got accepted
For AY 16-17: I showed this transaction of sale and also disclosed the Capital Gains thereon. TDS claimed = Rs. X + Rs. Y
However, I have received a notice for Mis-match of TDS as it does not tally with the Form 26AS of that year. They didnt consider the brought forward TDS but only considered the TDS Deducted for that year.
What should I do in this case?