kendo grid mvc 4 using json

public ActionResult samplem1([DataSourceRequest]DataSourceRequest request)
        {
   
            var t=GetCustomers().ToDataSourceResult(request);

            return Json(t, JsonRequestBehavior.AllowGet);
        }
        private static IEnumerable<Northwindproduct> GetCustomers()
        {
            var northwind = new KaushikEntities();
            var purchCount = northwind.tblEmployees.Count();
            return northwind.tblEmployees.Select(product => new Northwindproduct
            {
                id = product.Id,
                Name = product.Name,
                Gender = product.Gender,
                City = product.City

            });
        }



@( Html.Kendo().Grid<KendoUIMvcApplication2.Models.Northwindproduct>()
   .Name("grid")
      .DataSource(dataSource => dataSource
          .Ajax()
                  .Model(model => model.Id(product => product.id))
                  .Read(read => read.Action("samplem1", "Home") 
          )
      )
      .Columns(columns =>
      {
          columns.Bound(product => product.City);
          columns.Bound(product => product.Name);
          columns.Bound(product => product.Gender);
      })
      .Pageable()
      .Sortable()
)

{"Data":[{"id":1,"Name":"Mark","Gender":"Male","City":"London","DateOfBirth":"\/Date(-62135568000000)\/"},{"id":2,"Name":"John","Gender":"Male","City":"Chennai","DateOfBirth":"\/Date(-62135568000000)\/"},{"id":3,"Name":"Mary","Gender":"Female","City":"New York","DateOfBirth":"\/Date(-62135568000000)\/"},{"id":4,"Name":"Mike","Gender":"Male","City":"Sydeny","DateOfBirth":"\/Date(-62135568000000)\/"},{"id":5,"Name":"Scott","Gender":"Male","City":"London","DateOfBirth":"\/Date(-62135568000000)\/"}],"Total":5,"AggregateResults":null,"Errors":null}