"The object of giving such wide powers is to mitigate the rigour of the technicalitiesof the law,for achievingthe object effectiveinvestigationand settlementof industrialdisputes, and thus assuring industrial peace and harmony. The discretion thus conferred on these authorities to determine the procedure as they may thinkfit, however, is subject to the rules made by the 'appropriate Government'in this behalf Part III of the Industrial Disputes (Central) Rules, 1957 makes rules in this behalf Rules 9 to 30 are the relevant rules regulating procedure. State Governments too have made their own corresponding rules. Except to the extent specified in sub-s.(3) of s. 11 of the Act and the rulesframed thereunder, the provisions of the Code of Civil.Procedure, 1908 are not applicable to proceedings before the authorities mentioned in sub-s.(l). Theprovisions of the Evidence Act, in their strict sense, likewise do not apply to proceedings before the authorities. Nevertheless,,all these authorities being quasijudicial in nature objectively,determining matters referred to them, have to exercise theii: di:screti6nin a judicial manner, without caprice, and dccoMingito Hhe'.generalprinciples of law and rules ofnatural justic^i":-'--