Following the principle laid down in that case, this Court held that article 320(3) (c) itself contemplates three grounds: (i) that the proviso to article 320 itself contemplates that regulations may be made specifying matters in which either generally, or in any particular class of cases or in particular circumstances it shall not be necessary for a Public Service Commission to be consulted; (ii) that the advice of the Public Service Commission was not binding on the Government, and in the ab sence of such binding character it was difficult to see how non compliance with the provisions of article 320(3) (c) could have the effect of nullifying the final order passed by the Government; and (iii) that article 311 was not in any way controlled by article 320 and there was no provision in the Constitution expressly or otherwise providing that the result of non compliance with article 320(3) (c) would be to invalidate the proceedings ending with the final order of the Government.