AO with equivalent designation can invoke Explanation 3 to sec. 43(1) without seeking previous appro

IT : Where Tribunal set aside order of Assessing Officer holding that he had not obtained approval of Deputy Commissioner before applying Explanation 3 to section 43(1), in view of fact that at relevant time previous approval of 'Inspecting Assistant Commissioner' was required to be obtained and since Assessing Officer himself was IAC, impugned order passed by Tribunal was to be set aside