@Santhya Rama S Just check if this approach mentioned over here - https://techcommunity.microsoft.com/t5/core-infrastructure-and-security/use-power-automate-to-notify-of-upcoming-azure-ad-app-client/ba-p/2406145/page/2#comments helps to resolve your requirement (Alerts for app registration client secret).
Let me know if you have any further questions, feel free to post back.