It is, of course, not easy to define or adequately describe what an error of law apparent on the face of the record means. What can be corrected by a writ has to be an error of law; but it must be such an error of law as can be regarded as one which is apparent on the face of the record. Where it is manifest or clear that the conclusion of law recorded by an inferior Court or Tribunal is based on an obvious misinterpretation of the relevant statutory provision, or sometimes in ignorance of it, or may be, even in disregard of it, or is expressly founded on reasons which are wrong in law, the said conclusion can be corrected by a writ of certiorari. In all these cases, the impugned conclusion should be so plainly inconsistent with the relevant statutory provision that no difficulty is experienced by the High Court in holding that the said error of law is apparent on the face of the record…. Whether or not an impugned error is an error of law and an error of law which is apparent on the face of the record, must always depend upon the facts and circumstances of each case and upon the nature and scope of legal provision which is alleged to have been misconstrued or contravened.