MVC Action Names & NonAction method

            In MVC URLs not being case sensitive. So that for example if you have the request “Home/About” this goes to HomeController and About action, as well as hOmE/AbOUT is going to the same controller and same action method. 
            SUPPOSE  if we have 2 about action methods in the same controller with different cases such as:

public class HomeController:Controller{     public ViewResult About()    {         return View();    }     public ViewResult aBOut()     {         return View();     } }

when Icall action method About using following url http://your applicationname/Index/ABOUT I got following server page error

The framework can’t determine which ‘about’ function to call, and throws the exception telling that the call is ambiguous. Of course one way to fix this problem is to change the action name. If for some reason you don’t want to change the action name, and one of these function is not an action, then you can decorate this non action method with NonAction attribute. Example:

[NonAction] public ActionResult aBOut() {    return View(); }