Hi,
I did tried this code inside Controller Get method. And now it is working!!!
objcountrymodel.listNumEmployeeVM.Insert(0, new NumEmployeeVM() { idNumEmployees = 0, NumEmployeeDesc = "Select" });
View,
<pre>@Html.DropDownListFor(model => model.listNumEmployeeVM, new SelectList(Model.listNumEmployeeVM, "idNumEmployees", "NumEmployeeDesc"), new { @id = "ddlemploye", @class = "form-control validate[required]" })