(a) a Chairman to be appointed by the Central Government;

(b) the Chief Labour Commissioner (Central)- ex officio ;

(c) [three] persons representing the Central Government, to be appointed by that Government from amongst its officials;

(d) [two] [ Substituted by G.S.R. 1643, dated 16.10.1971 (w.e.f. 30.10.1971).] persons representing the Railways, to be appointed by Central Government after consultation with the Railway Board;

(e) [five] [ Substituted by G.S.R. 598, dated 23.5.1973 (w.e.f. 2.6.1973).] persons, one representing the employers in coal mines, two representing the employers in other mines and two representing contractors to whom the Act applies, to be appointed by the Central Government after consultation with such organisations, if any, of the employers and the contractors as may be recognised by the Central Government;

(f) [seven] [Substituted by G.S.R. 598, dated 23.5.1973 (w.e.f. 2.6.1973). ] persons, [two] [ Substituted by G.S.R. 1643, dated 16.10.1971 (w.e.f. 30.10.1971).] representing the employees in the Railways, one representing the employees in coal mines, [two] [Substituted by G.S.R. 598, dated 23.5.1973 (w.e.f. 2.6.1973). ] representing the employees in other mines, and two representing the employees of the contractors to whom the Act applies, to be appointed by the Central Government after consultation with such organisations , if any, of employees representing the respective interest as may be recognised by the Central Government.