public JsonResult GetCarByCarId(int carId)
        {
            var settings = new JsonSerializerSettings
            {
                ReferenceLoopHandling = ReferenceLoopHandling.Ignore,
                StringEscapeHandling  = StringEscapeHandling.EscapeHtml
            };
            var result = _bal.GetCarDetails(carId);

            return(new JsonResult {
                Data = JsonConvert.SerializeObject(result, settings), JsonRequestBehavior = JsonRequestBehavior.AllowGet
            });;
        }