For windows authentication you need to go and modify the “web.config” file 
and set authentication mode to windows.
		
				<authentication mode="Windows"/>
				<authorization>
				<deny
users="?"/>
				</authorization>
		 
		Then in the controller or on the action you can use the “Authorize” attribute 
which specifies which users have access to these controllers and actions. Below 
is the code snippet for the same. Now only the users specified in the controller 
and action can access the same.
		
				[Authorize(Users= @"WIN-3LI600MWLQN\Administrator")]
				    public class
StartController : Controller
				    {
				        //
				        // GET: /Start/
				        [Authorize(Users
= @"WIN-3LI600MWLQN\Administrator")]
				        public ActionResult Index()
				        {
				            return
View("MyView");
				        }
				
						 
				
				    }
		 
		Above is the ASP.NET MVC 
interview questions & also see the following video on redirect permanent: -