Section 401 in The Code of Criminal Procedure
Title: High Court's powers of revision
(1) In the case of any proceeding the record of which has been called for by itself or which otherwise comes to its knowledge, the High Court may, in its discretion, exercise any of the powers conferred on a Court of Appeal by sections 386, 389, 390 and 391 or on a Court of Session by section 307, and, when the Judges composing the Court of Revision are equally divided in opinion, the case shall be disposed of in the manner provided by section 392.
(2) No order under this section shall be made to the prejudice of the accused or other person unless he has had an opportunity of being heard either personally or by pleader in his own defence.
(3) Nothing in this section shall be deemed to authorise a High Court to convert a finding of acquittal into one conviction.
(4) Where under this Code an appeal lies and no appeal is brought, no proceeding by way of revision shall be entertained at the instance of the party who could have appealed.
(5) Where under this Code an appeal lies but an application for revision has been made to the High Court by any person and the High Court is satisfied that such application was made under the erroneous belief that no appeal lies thereto and that it is necessary in the interests of Justice so to do, the High Court may treat the application for revision as a petition of appeal and deal with the same accordingly.
Title: Power of High Court to withdraw or transfer revision cases
(1) Whenever one or more persons convicted at the same trial makes or make application to a High Court for revision and any other person convicted at the same trial makes an application to the Sessions Judge for revision, the High Court shall decide, having regard to the general convenience of the parties and the importance of the questions involved, which of the two Courts should finally dispose of the applications for revision and when the High Court decides that all the applications for revision should be disposed of by itself, the High Court shall direct that the applications for revision pending before the Sessions Judge be transferred to itself and where the High Court decides that it is not necessary for it to dispose of the applications for revision, it shall direct that the applications for revision made to it be transferred to the Sessions Judge.
(2) Whenever any application for revision is transferred to the High Court, that Court shall deal with the same as if it were an application duly made before itself.
(3) Whenever any application for revision is transferred to the Sessions Judge, that Judge shall deal with the same as if it were an application duly made before himself.
(4) Where an application for revision is transferred by the High Court to the Sessions Judge, no further application for revision shall lie to the High Court or to any other Court at the instance of the person or persons whose applications for revision have been disposed of by the Sessions Judge
Title: Option of Court to hear parties
Save as otherwise expressly provided by this Code, no party has any right to be heard either personally or by pleader before any Court exercising its powers of revision; but the Court may, if it thinks fit, when exercising such powers, hear any party either personally or by pleader.
Title: Statement by Metropolitan Magistrate of ground of his decision to be considered by High Court
When the record of any trial held by a Metropolitan Magistrate is called for by the High Court or Court of Session under section 397, the Magistrate may submit with the record a statement setting forth the grounds of his decision or order and any facts which he thinks material to the issue, and that Court shall consider such statement before overruling or setting aside the said decision or order
Title: High Court's order to be certified to lower Court
When a case is revised under this Chapter by the High Court or a Sessions Judge, it or he shall, in the manner provided by section 388, certify its decision or order to the Court by which the finding, sentence or order revised was recorded or passed, and the Court to which the decision or order is so certified shall thereupon make such orders as are conformable to the decision so certified, and, if necessary, the record shall be amended in accordance therewith.