How transfer in consideration of debt, or subject to future payment etc., to be charged

Provided that nothing in this section shall apply to any such certificate of sale as is mentioned in Article 15 of the Schedule.

Explanation.- In the case of a sale of property subject to a mortgage or other encumbrance, any unpaid mortgage money or money charged, together with the interest (if any) due on the same, shall be deemed to be part of the consideration for the sale:

Provided that, where property subject to a mortgage is transferred to the mortgagee, he shall be entitled to deduct from the duty payable on the transfer the amount of any duty already paid in respect of the mortgage.

Illustrations.

1. (1) A owes B Rs. 1,000. A sells a property to B the consideration being Rs. 500 and the release of the previous debt of Rs. 1,000. Stamp duty is payable on Rs. 1,500.
2. (2) A sells a property to B for Rs. 500 which is subject to a mortgage to C for Rs. 1,000 and unpaid interest Rs. 200. Stamp duty is payable on Rs. 1,700.
3. (3) A mortgages a house of the value of Rs. 10,000 to B for Rs. 5,000. B afterwards buys the house from A. Stamp duty is payable on Rs. 10,000 less the amount of stamp duty already paid for the mortgage.