DropDownListFor in MVC

Question

Hi ,

 

i have dropdownlist (MVC Razor page )  as bellow

@Html.DropDownListFor(model => model.Contant.KEYWORD_NAME, ViewData["KEYWORD_NAME"] as IEnumerable<SelectListItem>, "select the compnay", new { @class = "form-control" })

   after i reteun view the selected value from dropdownlist changed to other value not selected 

how i can keep the selected value after return view