Section 2 (21)


"Director General or Director" means a person appointed to be a Director General of Income-tax or a Principal Director General of Income-tax or, as the case may be, a Director of Income-tax or a Principal Director of Income-tax, under sub-section (1) of section 117, and includes a person appointed under that sub-section to be an Additional Director of Income-tax or a Joint Director of Income-tax or an Assistant Director or Deputy Director of Income-tax;