I had followed these steps
first of all i had selected languages from tenant dashboard.
than in my login function i had added
this.authService.loginWithRedirect({ authorizationParams: { screen_hint:“login”,ui_locales: ‘hi’ ,language: ‘hi’}} );
Thank you,everything resolved . I have one more Question can I pass language dynamically to authguard provided auth0-angular package. i am having an api which takes current website uri and provides language. I want to pass it in authguard ui_locales.