the way i give permalinks to internal links of pages in wordpress for instance web portal services <a href="?page_id=411">24/7 urgent support</a>, i wish to display page title rather than page when user hover the interior link

I am unsure which i understand your question, however, you should first take a look here Permalinks in wordpress codex If what you would like would be to simply display text on hover, the written text that turns up on hover is incorporated in the html Title attribute. For instance <a href="link" title="textonhover"> You can put this within the Title attribute to create it: <?php echo get_the_title(ID) ?>