Section 100-A of the Code of Civil Procedure, as substituted by the Amendment Act of 2002 will not have retrospective effect so as to bring within its fold even appeals preferred prior to coming into force of the said amendment with effect from 1-7-2002. Thus, a Letters Patent Appeal, which was filed prior to the coming into force of the said amendment, would be maintainable. In which of the following cases it was so upheld?