public ActionResult Login(LoginViewModel model, string returnUrl)
        {
            var objUtilities       = new Utilities.Utilities();
            var validateAdminLogin = objUtilities.ValidateAdminLogin(model);

            if (validateAdminLogin)
            {
                return(RedirectToAction("Index", "Home"));
            }
            ModelState.AddModelError("", "Invalid login attempt.");
            return(View(model));
        }