(1) The Central Government may constitute, by notification in the Official Gazette, an advisory committee to be called "The Narcotic Drugs and Psychotropic Substances Consultative Committee" (hereafter in this section referred to as the Committee) to advise the Central Government on such matters relating to the administration of this Act as are referred to it by that Government from time to time.
     (2) The Committee shall consist of a Chairman and such other members, not exceeding twenty, as may be appointed by the Central Government.
     (3) The Committee shall meet when required to do so by the Central Government and shall have power to regulate its own procedure.
     (4) The Committee may, if it deems it necessary so to do for the efficient discharge of any of its functions, constitute one or more sub-committees and may appoint to any such sub-committee, whether generally or for the consideration of any particular matter, any person (including a non-official) who is not a member of the Committee.
     (5) The term of office of, the manner of filling casual vacancies in the offices of and the allowances, if any, payable to, the Chairman and other members of the Committee, and the conditions and restrictions subject to which the Committee may appoint a person who is not a member of the Committee as a member of any of its sub-committees, shall be such as may be prescribed by rules made by the Central Government.