"The unrestricted right of appeal from acquittal is specifically conferred only on the State and a private complainant is given this right only when the criminal prosecution was instituted on his complaint and then also subject to special leave by the High Court. It is further provided in S. 439(5), Cr.P.C. that where no appeal is brought in a case in which an appeal is provided, no proceedings by way of revision would be entertained at the instance of the party who could have appealed. The State Government, therefore, having failed to appeal, cannot apply for revision of an order of acquittal. Again on revision, the High Court is expressly prohibited from converting an acquittal into a conviction. Considering the problem facing the Court in this case in the background of this scheme, the High Court when approached by a private party for exercising its power of revision from an order of acquittal, should appropriately refrain from interfering except when there is a glaring legal defect of a serious nature which has resulted in grave failure of justice. It is not expected to act under Ss. 435/439, Cr. P.C. as if it is a hearing on appeal in spite of the wide language under S. 435 which empowers it to satisfy itself as to the correctness, legality or propriety of a finding, sentence or order and as to the regularity of any proceeding and also in spite of the fact that under S. 439 it can exercise inter alia the power conferred on a Court of appeal under S. 423, Cr. P.C. The power being discretionary, it has to be exercised judiciously, and not arbitrarily. Judicial discretion, as has often been said, means a discretion which is informed by tradition, methodised by analogy and disciplined by system. In Amar Chand Aggarwal v. Shanti Bose, AIR 1973 SC 799, this Court said that normally the jurisdiction of the High Court under S. 439, Cr. P.C is to be exercised only in exceptional cases when there is a glaring defect in the procedure or there is a manifest error on point of law and there has consequently been flagrant miscarriage of justice. In the background of the position just stated a private complainant can only claim a right, in common with all aggrieved parties in a criminal proceedings, to invoke the revisional jurisdiction of the High Court for redress against miscarriage of justice arising from an erroneous order of acquittal."