How to make custom URL??

[eluser]aniketharshe20[/eluser]
Hello,

I want to have a custom URL like domainname/#/topic
where topic is any string.

Currently I have domainname/topic , I have done this via routes.php

Code:

$route['(.*)'] = 'topic/view/$1';

so here view method of topic controller is called.

I want to have same thing but with # in the URL.

How can I achieve this??

Thanks,
Aniket