Not realy sure what your usecase is.
Mendix provides Role-based HomePages after succesfull login (which Mendix handles fully by itself) the user is automatically navigated to their role-based HomePage.
You can find this under Navigation -> Role-based home pages.
Hi Omkar,
I suggest reading the following documentation: https://docs.mendix.com/refguide/setting-up-the-navigation-structure/
Basically, go to App -> Navigation, and change the default page or assign a userrole specific page.