View in ActionResult not working in ASP.NET MVC 5

In my ASP.NET MVC 5 project, I have an ActionResult SaveUploadedFile and an ActionResult Dashboard. SaveUploadedFile redirects to Action Dashboard.

public ActionResult SaveUploadedFile()
{
     //Call to WEB API
     ...
     ...
     //On Success of API
     if (results.payload.success == true)
     {
         return RedirectToAction("Dashboard");
     }

 throw new HttpException(403, "Something happened");

} 

public ActionResult Dashboard()
{
     return View();
} 

The ActionResult XXX is called from my HTML form.

 <form action="~/Home/SaveUploadedFile" method="post" enctype="multipart/form-data" class="dropzone" id="dropzoneForm"></form>

The control reaches ActionResult Dashboard but the corresponding Dashboard View doesn't get rendered. Dashboard works perfectly when called from other ActionResults.

Am I missing something here?