how to stop sending on selection of drop downlist to a actionMethod?

@using (Html.BeginForm("Details", "Home", FormMethod.Post))
    {
 <div class="FormContainer">
                
                    <table>
                        <tr>
                            <td class="Label">
                                @Html.Label("*Name of District")
                            </td>

                            <td>
                                
                                <div class="ddl1">
                                    @Html.Partial("_District")
                                   
                                </div>
                               

                            </td>
                        </tr>

                        <tr>
                            <td class="Label">
                                @Html.Label("*Name of Tehsil")
                            </td>

                            <td>
                                <div id="tehsil" class="ddl2">
                                    @Html.Partial("_Tehsil")
                                </div>
                            </td>
                        </tr>

                        <tr>
                            <td class="Label">
                                @Html.Label("*Name of Sub Tehsil")
                            </td>

                            <td>
                                <div id="Subtehsil">@Html.Partial("_SubTehsil", Model)</div>
                                
                            </td>
                        </tr>

                        <tr>
                            <td class="Label">
                                @Html.Label(" Village")
                            </td>
                            <td class="txbox">
                                @Html.TextBox("Village", null, new { @class = "txtbox" })
                            </td>
                        </tr>

                        <tr>
                            <td class="Label">
                                @Html.Label("*Name of Applicant")
                            </td>
                            <td class="txbox">
                                @Html.TextBox("NameOfApplicant", null, new { @class = "txtbox" })
                            </td>
                        </tr>

                        <tr>
                            <td class="Label">
                                @Html.Label("*Name of Land Owners / Owners")
                            </td>
                            <td class="txbox">
                                @Html.TextBox("NameOfLandOwners", null, new { @class = "txtbox" })
                            </td>
                        </tr>
</table>
}</div>

Quote:

C#

</blockquote>



@using (Ajax.BeginForm("Selecttehsil", "Home", new AjaxOptions { UpdateTargetId = "tehsil" }))
{

    @Html.DropDownListFor(m => m.SelectedDistrictId, 
                        new SelectList(Model.Districts, "DistrictId", "DistrictName"), 
                        "----Select District----", 
                        new { @class = "ddl" }
    )
 
}

<script type="text/javascript">
   
        $('#SelectedDistrictId').change(function () {
            $(this).parents('form').submit();
          
        });
   
</script>

_tehsil partial view

C#

@if (Model.Tehsils != null && Model.Tehsils.Count() > 0)
{ 
using (Ajax.BeginForm("Selectsubtehsil", "Home", new AjaxOptions { UpdateTargetId = "Subtehsil" }))
{    
    @Html.HiddenFor(m => m.SelectedDistrictId)
    @Html.DropDownListFor(m => m.SelectedTehsilId, new SelectList(Model.Tehsils, "TehsilId", "TehsilName"), "----Select Tehsil-----", new {@class = "ddl" })
}

}
<script type="text/javascript">
    $('#SelectedTehsilId').change(function () {
        $(this).parents('form').submit();
     
    });
</script>

_subtehsil Partial view

C#

@if (Model.SubTehsils != null && Model.SubTehsils.Count()>0)
{ 
    @Html.DropDownList("SubTehsils", new SelectList(Model.SubTehsils, "SubTehsilId", "SubTehsilName"), "----Select SubTehsil---", new { @class = "ddl"})
}

when i select an item from dropdownlist it get posted to "Details" action method which i want it to do when i click on submit button. Please tell me a way out here.