title: asp.net mvc 3 changes made in Controller files are not reflected
body: <p>I'm new to ASP.NET MVC3, I got simple work to add a page in already existing web site.</p>
  
  <p>Any changes made in Controller files are not reflected. Even I renamed Controller folder to Controller1 etc.. but site is working perfectly!!! Rally Sucks.
  But renaming Views and other folders throw errors. </p>
  
  <p>Am I doing anything wrong? Any Helps are very much appreciated!</p>