Section 2(7A) of Income Tax Act 1961-“Assessing Officer”
means the Assistant Commissioner or Deputy Commissioner or Assistant Director or Deputy Director or the Income-tax Officer who is vested with the relevant jurisdiction by virtue of directions or orders issued under sub-section (1) or sub-section (2) of section 120 or any other provision of this Act, and the Additional Commissioner or Additional Director or Joint Commissioner or Joint Director who is directed under clause (b) of sub-section (4) of that section to exercise or perform all or any of the powers and functions conferred on, or assigned to, an Assessing Officer under this Act ;