“17. The learned Single Judge seems to have undertaken an exercise, impermissible for him in exercising writ jurisdiction, by liberally reappreciating the evidence and drawing conclusions of his own on pure questions of fact, unmindful, though aware fully, that he is not exercising any appellate jurisdiction over the awards passed by a tribunal, presided over by a judicial officer. The findings of fact recorded by a fact-finding authority duly constituted for the purpose and which ordinarily should be considered to have become final, cannot be disturbed for the mere reason of having been based on materials or evidence not sufficient or credible in the opinion of the writ court to warrant those findings, at any rate, as long as they are based upon some material which are relevant for the purpose or even on the ground that there is yet another view which can reasonably and possibly be taken… … The only course, therefore, open to the writ Judge was to find out the satisfaction or otherwise of the relevant criteria laid down by this Court, before sustaining the claim of the canteen workmen, on the facts found and recorded by the fact-finding authority and not embark upon an exercise of reassessing the evidence and arriving at findings of one's own, altogether giving a complete goby even to the facts specifically found by the Tribunal below.”