24.-(1) Where a notice of appeal has been filed, the appellant may, before the date of hearing of the appeal, amend the grounds stated in such notice by filing such amended grounds of appeal with the Chief Registrar and delivering a copy thereof to the respondent.
(2) Where an application for leave to appeal has been filed, the applicant-
(a) at any time before such application has been dealt with under sub-section (2) of section 137; or
(b) after a Judge of the Supreme Court has granted leave to appeal, by leave of the Judge,
may amend the grounds stated in such application by filing such amended grounds of appeal with the Chief Registrar and, where leave to appeal has been granted, delivering a copy thereof to the respondent.
(3) In this rule the respondent in the case of a private prosecution means the prosecutor or his advocate and in every other case the Attorney-General.