(a) the Central Board of Direct Taxes constituted under the Central Boards of Revenue Act, 1963 (54 of 1963),
(aa) Principal Directors General of Income-tax or Principal Chief Commissioners of Income-tax,
(b) Directors-General of Income-tax or Chief Commissioners of Income-tax,
(ba) Principal Directors of Income-tax or Principal Commissioners of Income-tax,
(c) Directors of Income-tax or Commissioners of Income-tax or Commissioners of Income-tax (Appeals),
(cc) Additional Directors of Income-tax or Additional Commissioners of Income-tax or Additional Commissioners of Income-tax (Appeals),
(cca) Joint Directors of Income-tax or Joint Commissioners of Income-tax,
(d) Deputy Directors of Income-tax or Deputy Commissioners of Income-tax or Deputy Commissioners of Income-tax (Appeals),
(e) Assistant Directors of Income-tax or Assistant Commissioners of Income-tax,
(f) Income-tax Officers,
(g) Tax Recovery Officers,
(h) Inspectors of Income-tax.
