YashSangle This may be an issue with the App service provider or through the network service provider. I have moved to NP2A recently and while I was installing apps on NP2A which required OTPs and Service messages to flow, I did not encounter any problems esp. messages getting delivered to the phone multiple times.
You may have experienced delay in receiving the OTPs, and then clicked on Resend OTP and then a bunch of OTPs may have been received on your phone at the same time. I did experience this while using an App of a Network service provider.
If you still feel that the issue persists, uninstall the app requiring OTP, reinstall it and then check the process or you can conduct transactions that require OTP with minimum amounts (own account transfer).
