(b)in the case of a ][domestic company] [ Substituted by Act 32 of 1994, Section 31, for " company" (w.e.f. 1.4.1995).],-(i)[ the amount of income-tax payable on the total income as reduced by the amount of such long-term capital gains, had the total income as so reduced been its total income; and [Inserted by Act 18 of 1992, Section 53 (w.e.f. 1.4.1993).](ii)the amount of income-tax calculated on such long-term capital gains at the rate of ][twenty per cent.] [ Substituted by Act 33 of 1996, Section 37, for " thirty per cent." (w.e.f. 1.4.1997).];