“ 7 . The question about the limits of the jurisdiction of High Courts in issuing a writ of certiorari under Article 226 has been frequently considered by this Court and the true legal position in that behalf is no longer in doubt. A writ of certiorari can be issued for correcting errors of jurisdiction committed by inferior courts or tribunals : these are cases where orders are passed by inferior courts or tribunals without jurisdiction, or is in excess of it, or as a result of failure to exercise jurisdiction. A writ can similarly be issued where in exercise of jurisdiction conferred on it, the Court or Tribunal acts illegally or properly, as for instance, it decides a question without giving an opportunity, be heard to the party affected by the order, or where the procedure adopted in dealing with the dispute is opposed to principles of natural justice. There is, however, no doubt that the jurisdiction to issue a writ of certiorari is a supervisory jurisdiction and the Court exercising it is not entitled to act as an appellate Court. This limitation necessarily means that findings of fact reached by the inferior Court or Tribunal as result of the appreciation of evidence cannot be reopened or questioned in writ proceedings. An error of law which is apparent on the face of the record can be corrected by a writ, but not an error of fact, however grave it may appear to be. In regard to a finding of fact recorded by the Tribunal, a writ of certiorari can be issued if it is shown that in recording the said finding, the Tribunal had erroneously refused to admit admissible and material evidence, or had erroneously admitted inadmissible evidence which has influenced the impugned finding. Similarly, if a finding of fact is based on no evidence, that