Correction of PAN in Form 26QB - TDS on Property

Dear Sir,

I have paid TDS of Rs.28000/- towards TDS on property (Form 26QB) and PAN number of buyer is entered under Seller, further the TDS amount has also paid considering the same transaction.

Now, I need to make the Correction by entering the PAN of Buyer instead of seller PAN. Please guide me as points given below:-

1. How to file a correction for the same.

2. How many days will it take for correction.

Thank You,