I have a this part in Edit.chtml looks like
@using (@Html.BeginForm())
{
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true)
<article class="SearchBoxCon clearfix">
                        @if (Model.Entity.Document == null)
                        {
                            using (Html.BeginForm("AudioUpload", "Noun", FormMethod.Post, new { enctype = "multipart/form-data", NounId = Model.Entity.Id }))
                            {
                                <article class="BtnCon">
                                    <article class="BrowseBtn">
                                        <input type="file" value="Browse" name="file">
                                    </article>
                                    <article class="BrowseUpload">
                                        <input type="submit" id="AudioUpload" value="AudioUpload">
                                    </article>
                                </article>
                            }
                        }
                        else
                        {
                            <article class="inputBTn">
                                <input type="submit" value="Play">
                                <input type="submit" value="Delete">
                            </article>
                        }
                    </article>
                <article class="inputBTn">
                    <input type="submit" value="Save">
                </article>
                <!-- submit btn ends here -->
                @Html.ActionLink("Back to List", "Index", "Noun/Index", null, new { @class = "BackList" })
            </article>
}
after browsing and upload the file , and click the upload it fire the edit posting action instead of the uploadaudio which looks like
 [HttpPost]
        public ActionResult AudioUpload(HttpPostedFileBase file , int NounId )
        {
 
     
    