{controller}/{action}/{id}

 routes.MapRoute(
                "old_blogger", // Route name
                "search/label/{name}", // URL with parameters
                new { controller = "Tag", action = "Index", name = UrlParameter.Optional } // Parameter defaults
            );

$("#btn1").unbind("click");

    // displaying file    
$array = array(
'filelink' => '/images/'.$filename
);

echo stripslashes(json_encode($array));   

var array = new { filelink = "Images/k1.jpg" };
return Json(array, System.Net.Mime.MediaTypeNames.Text.Plain, JsonRequestBehavior.AllowGet);

$array = array(
'filelink' => '/files/'.$_FILES['file']['name'],
'filename' => $_FILES['file']['name']
);

echo stripslashes(json_encode($array));

var array = new { filelink = "files/myfile.zip", filename="myfile.zip" };
return Json(array, System.Net.Mime.MediaTypeNames.Text.Plain, JsonRequestBehavior.AllowGet);