someone has given a land on lease for thirty years. The lessee construct the building on the land and runs the hotel. after approx ten years, the lessor sales the property to the lessee at an" x" amount ( which is more than the dlc rate of land) and receives the same, in the sale deed it is mentioned that since the building was constructed by the lessee so no consideration has been given to the lessor for the same. but the registrar considering the value "y" ,including the building value charges the stamp duty on the amount "y". Now while calculating the capital gain tax which value should be taken in consideration "X" or "Y"?