HttpPostedFileBase always show null

@using (Html.BeginForm("UploadVideos", "Videos", FormMethod.Post, new { enctype = "multipart/form-data", @data_ajax = "false" }))
{
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true)
        <input type="file" value="file" id="fileCntrl" name="uploadFile" accept="video/*" data-val="true" data-val-required="File is required"  />
        <input type="submit" value="Upload" />
  }

public ActionResult UploadVideos()
       {
           return View();
       }

       [HttpPost]
       public ActionResult UploadVideos(HttpPostedFileBase fileCntrl)
       {

           if (fileCntrl != null && fileCntrl.ContentLength > 0)
               {
                   var filename = Path.GetFileName(fileCntrl.FileName);
                   var path = Path.Combine(Server.MapPath("~/Images"), filename);
                   fileCntrl.SaveAs(path);
               }

           return View();
       }