Section 20D(1) in The Assam Agricultural Income-Tax Act, 1939
(1)Where in any case in consequence of any order relating to computation of income made under the Income Tax Act, 1961, by any authority constituted under that Act the income of an assessee as assessed under that Act in respect of any period is revised leading to enhancement or, as the case may be, reduction of the agricultural income of the assessee in respect of the period, the assessee shall, as specified in sub-Sections (2) and (3), submit a return of his agricultural income or as the case may be, a revised return of his agricultural income in respect of the period to the Superintendent of Taxes or Agricultural Income-tax Officer disclosing therein his agricultural income as enhanced or reduced as aforesaid.