(2)Without prejudice to the provisions of sub-section (1), and subject to the rules and orders of the Central Government regulating the conditions of service of persons in public services and posts, the Central Government may authorise the Board, or a Director-General, a Chief Commissioner or a Director or a Commissioner to appoint income-tax authorities below the rank of an ][Assistant Commissioner or Deputy Commissioner] [ Substituted by Act 21 of 1998, Section 3, for " Assistant Commissioner" (w.e.f. 1.10.1998).].