How to solve datepicker problem to show date months as per selected date ?

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Javascript

MVC

jQuery

Datepicker by default shows current month even if date is changed to Jaunuary or any other month.
When i change the date to other month and again click datepicker opens with current month not the month selected.

What I have tried:

@Html.TextBoxFor(m => m.startdate, "{0:ddd dd MMM yyyy}", new
               {
                   @id = "txtStartdate",
                   @class = "Date DefaultToolTip dtpFormat_ddd_dd_MMM_yyyy",
                   //@disable = "disable",
                   @data_prevValue = (Model.startdate == null ? "" : Model.startdate.Value.ToString()),
                   @tabindex = 14,
                   @data_toggle = "tooltip",
                   @data_placement = "right",
                   //@readonly = true,
                   @data_boxName = "Start Date",
                   @data_destroyDatePickerForReadonly = false,
                   @data_cursorPointer = true,
                   @data_dtpDate = (Model.startdate == null ? "" : Model.startdate.Value.ToString("dd/MM/yyyy")),
                   @title = SolutionCentre.Infrastructure.Resources.ResourcesforAdmin.SystemOptionsToolTips.TaskSch_box8.ToString()

               })