Explanation:

Section 5- Extension of prescribed period in certain cases-- Any appeal or any application other than an application under any of the provisions of order 21 of the CPC, may be admitted after the prescribed period, if the appellant or applicant satisfies the court that he had sufficient cause for not preferring the appeal or making the application within such period.
Explanation – The fact that appellant or the applicant was mislead by any order, practice or judgment of the High Court in ascertaining or computing the prescribed period may be a sufficient cause within a meaning of the sub-section.
This Section applies to Criminal Appeal as well.