URL Routing Conflict in ASP.Net

Hi Friends,

I am getting problem related to URL Routing please suggest. 

We have implemented "www.mysite.com/admin/add" URL in routing.config file.

there is new reqirment for dymanic url Like this  "www.mysite.com/{Categorytext}/{ProductText}" 

for this new requirment we have impplemented, but now we are facing problem that when we open "www.mysite.com/admin/add" url direct from any browser then system will redirect to  www.mysite.com/{Categorytext}/{ProductText} this url, system consider  'admin' as {Categorytext} and 'add' as {ProductText}.


 please suggest us solution to resolve this issue.