[Substituted for "2011" by the Finance Act, 2011, w.e.f.01.04.2012. Earlier, "2011" was substituted for "2010" by the Finance Act, 2010, w.e.f. 01.04.2011, "2010" was substituted for "2007" by the Finance (No.2) Act, 2009, w.e.f. 01.04.2010 and "2007" was substituted for "2001" by the Finance Act, 2006, w.e.f. 01.04.2007] [2012] is less than [Substituted for "eighteen per cent" by the Finance Act, w.e.f 01.04.2012. Earlier, "eighteen per cent" was substituted for "fifteen per cent" by the Finance Act, 2010, w.e.f. 01.04.2011, "fifteen per cent " was substituted for "ten per cent" by the Finance (No.2) Act, 2009, w.e.f. 01.04.2010 and "ten per cent" was substituted for "seven and one-half per cent" by the Finance Act, 2006, w.e.f. 01.04.2007] (eighteen and one-half per cent) of its book profit, [Substituted for "the tax payable for the relevant previous year shall be deemed to be seven and one-half per cent of such book profit" by Finance Act, 2002, w.r.e.f.01.04.2001 [such book profit shall be deemed to be the total income of the assessee and the tax payable by the assessee on such total income shall be the amount of income tax at the rate of [Substituted for "eighteen per cent" by the Finance Act, w.e.f 01.04.2012. Earlier, "eighteen per cent" was substituted for "fifteen per cent" by the Finance Act, 2010, w.e.f. 01.04.2011, "fifteen per cent " was substituted for "ten per cent" by the Finance (No.2) Act, 2009, w.e.f. 01.04.2010 and "ten per cent" was substituted for "seven and one-half per cent" by the Finance Act, 2006, w.e.f. 01.04.2007] [eighteen and one-half per cent]: