How to put two actions in the controller with the same name and same parameter type?

Is is possible to put two actions in the controller with the same name and same no. of parameters and parameter type as shown below.

   [HttpGet]
    public ActionResult Index(int x)
    {
        return View();
    }
    [HttpPost]
    public ActionResult Index(int a)
    {
        return View();
    }