(15)Where in the assessment for any year, a capital gain arising from the transfer of a capital asset, being land or building or both, is computed by taking the full value of the consideration received or accruing as a result of the transfer to be the value adopted or assessed by any authority of a State Government for the purpose of payment of stamp duty in accordance with sub-section (1) of section 50-C, and subsequently such value is revised in any appeal or revision or reference referred to in clause (b) of sub-section (2) of that section, the Assessing Officer shall amend the order of assessment so as to compute the capital gain by taking the full value of the consideration to be the value as so revised in such appeal or revision or reference; and the provisions of section 154 shall, so far as may be, apply thereto, and the period of four years shall be reckoned from the end of the previous year in which the order revising the value was passed in that appeal or revision or reference.] [Inserted by Act 20 of 2002, Section 62 (w.e.f. 1.6.2002).]