Q:I M A SMALL PROMOTER. IN MY UNDER CONSTRUCTION BUILDING IN HOWRAH KOLKATA I HAVE SOLD A FLAT @2000/SQFT.BEFORE 31.03.2013 BUT NOW THE VALUATION OF THE FLAT IS COMING AT 3200/SQFT. SO WILL TH BUYER HAS TO PAY STAMPDUTY ON 3200 OR 2000. AND THE PROBLEM IT WILL CAUSE TO ME