I did that but it didnt work. Rather it made the links 20. Looking at the screenshot, when i increased the links, it increased section A in the screenshot.
However, I am talking about how to increase section B from 10 to 20.
I think this is going to require a core code hack as I'm not sure if it can be done in an override. Can you post a link to your site so I can check it out?
Sorry for the delay. This wasn't the easiest bit of code to find. Please remember this is changing the core code of Joomla, so if you update to a newer version, you'll need to check and see if this file is being overridden, and if it is, make the change to the new file.
Check in /libraries/joomla/html/pagination.php and at line 96 you'll see this:
$displayedPages = 10;
That should be the page limit that shows on the page you linked to.