Joining Table and Display Data using WCF Service in MVC

In Employee table, Did field is foreign key of Department_table.

[OperationContract]
List<Class1> getdata();

DatabaseEntities obj = new DatabaseEntities();

public List<Class1> getdata()
{
    var x = from b in obj.Employees
            join a in obj.Department_table
                   on b.Did equals a.Did
            select new Class1 { Name = b.Name,
                Address = b.Address,
                Department = a.Department };
    return x.ToList();
 }

ServiceReference1.ServiceClient obj = new ServiceReference1.ServiceClient();
 public ActionResult Index()
 {
     var x=obj.getdata();
     var y = x.ToList();

       var data = new  List<Class1>();

       foreach(var item in y)
       {
          data.Add(new Class1
          {
             Name = item.Name,
             Address=item.Address,
             Department=item.Department

          });
       }

   return View(data);
 }