Try below Code is that works

Note : Replace $pageid with the page you want users to be redirected to

/* Redirect log in page */
function redirect_login_page(){
  // Store for checking if this page equals wp-login.php
   $page_viewed = basename( $_SERVER['REQUEST_URI'] );

  // permalink to the custom login page
  $login_page  = get_permalink($pageid);

  if( $page_viewed == "wp-login.php" ) {
    wp_redirect( $login_page );
    exit();
  }
}

add_action( 'init','redirect_login_page' );

Let us know if this works.

Thanks.

Thanks for your reply.

Main problem is the if condition here. page_viewed does not match wp-login.php. When we enter URL – sitename/wp-admin it redirects to {sitename}/wp-login.php?redirect_to=http%3A%2F%2Flocalhost%2F{siename}%2Fwp-admin%2F&reauth=1
which is not equal to “wp-login.php”

I hope what I am saying makes sense.

Yes, I understand your concern, but I did try this code in my Local Env and it worked fine for me.

I think you should check what value you get in $page_viewed by printing it, that will give you more clarity on what your if condition will be.

Hope this helps.

Thanks.