title: Fetching querystring parameters from returnurl in Controller action method
body: <p>I am new to mvc. I have a returnurl argument in my action method of my controller sent from another controller.
  The returnurl has querystring parameters which i require to process in my controller action method.</p>
  
  <p>I tried <code>Request.QueryString[]</code> but the url is encoded so unable to fetch the parameters.</p>
  
  <p>Is there a way to fetch the parameters and its values from the returnurl argument?</p>