MVC rewrite Engine is maintained by a configuration file on your project's etc/conf.d
directories mvc.rewrite.php
File. rewrite rules are written as following.
/source -> /destination
/admin -> /admin/browse /u:(\w+) -> /user/profile/$1
http://server/zigmoyd/admin
http://server/zigmoyd/admin/browse
http://server/zigmoyd/u:Neel
http://server/zigmoyd/user/profile/Neel
Now if user tries
http://server/zigmoyd/u:Neel/arg
http://server/zigmoyd/user/profile/Neel/arg
But the user is completely anaware about this redirection. the user just see's the url he/she has typed. The end user doesn't know (There is no mathematical backdoor to know) what redirection is going on internally.