Substitution in the definition of section 2(15A) [w.r.e.f. 1st day of June, 2013]
For clause (15A), the following clause shall be substituted and shall be deemed to have been substituted with effect from the 1st day of June, 2013,—
'(15A) "Chief Commissioner" means a person appointed to be a Chief Commissioner of Income-tax or a
Principal Chief Commissioner of Income-tax under sub-section (1) of section 117;'