My father has purchased a flat: Property got registered after payment of due amount of stamp duty just 1 and half month back. Now he desire to change the flat i.e. from 8 th floor to 5 th floor in the same scheme.Even builder have no objection. Shall the stamp duty paid would get adjusted against the new flat.There is not difference on the area/location/scheme.There is only floor change. No Valuation difference also. .