“ 16. An adjudicating authority exercises a quasi-judicial power and discharges judicial functions. When its order had been set aside by the Board, ordinarily in absence of any power to prefer an appeal, it could not do so. The reasonings of the High Court that he had general power, in our opinion, is fallacious. For the purpose of exercising the functions of the Central Government, the officer concerned must be specifically authorised. Only when an officer is so specifically authorised, he can act on behalf of the Central Government and not otherwise. Only because an officer has been appointed for the purpose of acting in terms of the provisions of the Act, the same would not by itself entitle an officer to discharge all or any of the functions of the Central Government. Even ordinarily a quasi-judicial authority cannot prefer an appeal being aggrieved by and dissatisfied with the judgment of the appellate authority whereby and whereunder its judgment has been set aside. An adjudicating authority, although an officer of the Central Government, should act as an impartial tribunal. An adjudicating authority, therefore, in absence of any power conferred upon it in this behalf by the Central Government, could not prefer any appeal against the order passed by the Appellate Board.”(emphasis supplied)