child actions are not allowed to perform redirect actions. partial view

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ASP.NET

MVC

I'm trying to use Create view with the index view to show the created item in the same page. For that I'm using _CreateCategory as the partial view and I added following to the index view

{Html.RenderAction("Create", Model);}

My controller's get and post methods as follows for the Create

[HttpGet]
    public ActionResult Create()
    {
        return PartialView("_CreateCategory",new Inventory.Models.Category());
    }

[HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Create([Bind(Include="Id,Description")] Category category)
    {
        if (ModelState.IsValid)
        {
            db.Categories.Add(category);
            db.SaveChanges();
            return RedirectToAction( "Index");
        }

        return PartialView(category);
    }

My index method as follows

public ActionResult Index()
    {
        return View(db.Categories.ToList());
    }

I didn't do any changes to the partial view. I'm getting error "
child actions are not allowed to perform redirect action
. I tried many ways to overcome this. But no luck yet.