(1)Where any business or profession carried on by a firm has been discontinued or where a firm is dissolved, the [Assessing Officer] [ Substituted by Act 4 of 1988, Section 2, for " Income-tax Officer" (w.e.f. 1.4.1988).] shall make an assessment of the total income of the firm as if no such discontinuance or dissolution had taken place, and all the provisions of this Act, including the provisions relating to the levy of a penalty or any other sum chargeable under any provision of this Act, shall apply, so far as may be, to such assessment.