Hi, Senthilkumar.
Could you elaborate a bit on what is your final goal? From Michael's words above, it seems you intend to use OpenID Connect's implicit flow, is it correct? It's not clear to me why do you need to change Gluu's login page, though. But in case this helps, [here is our doc](https://gluu.org/docs/ce/3.0.2/operation/custom-loginpage/) on page customizations. If you'll provide more details, we may give you a better answer.