Payment of net amount due to Planning and Development Authority.

(1) The net amount payable under the provisions of this Act by the owner of a plot included in the final scheme, may, at his option, be paid in lumpsum or in annual installments not exceeding ten. If the owner elects to pay the amount by installments, interest at the rate of six per cent per annum shall be charged on the net amount payable. If the owner of a plot fails to so elect on or before the date specified in a notice issued to him, he shall be deemed to have elected to pay the contribution by installments and the interest on the contribution shall be calculated from the date specified in the notice. (2) Where two or more plots included in the final scheme are in the same ownership, the net amount payable by such owner under the provisions of this Act shall be distributed over his several plots in proportion to the increment which is estimated to accrue in respect of each plot, unless the owner and the Planning and Development Authority agree to a different method of distribution.