(4)[ The provisions of this section as they stood immediately before their amendment by the Direct Tax Laws (Amendment) Act, 1987 (4 of 1988), shall apply to and in relation to any assessment for the assessment year commencing on the 1st day of April, 1988, or any earlier assessment year and references in this section to the other provisions of this Act shall be construed as references to those provisions as for the time being in force and applicable to the relevant assessment year.] [ Inserted by Act 36 of 1989, Section 14 (w.r.e.f 1.4.1989).][Inserted by Act 14 of 2001, Section 60 (w.e.f. 1.6.2001).]
