List<Saras.SIMS.BehaviorMgmt.Entity.AchievementTypes> records = (from rcd in entity.AchievementType
                                                where rcd.OrganizationID == orgid && rcd.RecordState == 0
                                                select new Saras.SIMS.BehaviorMgmt.Entity.AchievementTypes
                                                {
                                                    AchievementTypeId = rcd.Id,
                                                    Name = rcd.Name,
                                                    Points = rcd.Points
                                                }).ToList();
 
 
I am returning this list to view as Model.AchievementTypes 
 
<div class="col-xs-12 bottom20">
            <div class="col-xs-12 subfont themecolor">Achievement type</div>
            <div class="col-xs-12 mainfont">
                @Html.DropDownListFor(m => m.AchievementTypeId, new SelectList(Model.AchievementTypes, "AchievementTypeId", "Name"), new { style = "width:100%" })
            </div>
        </div>
        <div class="row">
            <div class="col-xs-4 bottom20">
                <div class="col-xs-12 subfont themecolor">Weightage points</div>
                <div class="col-xs-12 mainfont">
                    @Html.ExcelTextBox(m => m.Weightage, new TextBoxAttributes().SetMaxlength("5").SetCheckSpecialCharacters("True").SetReadOnly(false).SetCssClass("form-control"))
                </div>
            </div>
 
 
Now Onchange of AchievementType I want to bind the Points Value present in Model.AchievementTypes to Weightage
 
 
Can any one please suggest me how to do it.