Provision of law applicable after coming into force of the 2019 Act: S. 23 of the 1986 Act provide that no appeal shall be entertained by Supreme Court unless the person who is required to pay the amount deposits 50% of the amount or Rs 50,000, whichever is less is not applicable to the complaints filed prior to the commencement of the 2019 Act. Held, Therefore, if one condition that was already available in the statute for the exercise of a right of appeal, is merely replaced by another condition, the same cannot be said to be retrospective, unless it is definitely shown that the amended condition is more onerous than the unamended condition
[ECGC Ltd. v. Mokul Shriram EPC JV, (2022) 6 SCC 704]