Sukumar,
I missed something... Is your link wright or wrong?
I understood that you link is
www.example.com/patents/teachingphilosophy but it should be
www.example.com/teachingphilosophy. Did I get it?
If this is the problem, I recommend you to use the
url helper (sample above).
PHP Code:
<a href="<?php echo $this->url(array('controller'=>'teachingphilosophy', 'action'=>'index'));?>">teachingphilosophy</a>
Using this helper avoid you write wrong links in your application.
regards,