MVC.NET Custom Root Handler Wrong action in Html:BeginForm

I used custom mvc route handler. But When I use Html.BeginForm or Ajax.BeginForm in the view, Action parameters change unexpectedly. My codes are above

My Register Route method is :

public static void RegisterRoutes(RouteCollection routes)
    {
        routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

        routes.MapRoute("alias",
                        "{alias}",
                        defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
                        ).RouteHandler = new FriendlyUrlRoutehandler();


        routes.MapRoute(
            "Default", // Route name
            "{controller}/{action}/{id}", // URL with parameters
            new {controller = "Home", action = "Index", id = UrlParameter.Optional} // Parameter defaults
            );
    }

My MvcRouteHandler is :

public class FriendlyUrlRoutehandler : MvcRouteHandler
{
    protected override IHttpHandler GetHttpHandler(RequestContext requestContext)
    {
        var friendlyUrl = (string)requestContext.RouteData.Values["alias"];

        if (friendlyUrl != null)
        {
            if (friendlyUrl.Equals("man-parfume"))
            {
                requestContext.RouteData.Values["controller"] = "ManParfume";
                requestContext.RouteData.Values["action"] = "Index";
            }
            else if (friendlyUrl.Equals("ring"))
            {
                requestContext.RouteData.Values["controller"] = "Ring";
                requestContext.RouteData.Values["action"] = "Index";
            }
            else if (friendlyUrl.Equals("glases"))
            {
                requestContext.RouteData.Values["controller"] = "Categories";
                requestContext.RouteData.Values["action"] = "Index";
                requestContext.RouteData.Values["id"] = 10;
            }
        }

        return base.GetHttpHandler(requestContext);
    }
}

My View is :

@using (Ajax.BeginForm("Index", "Home", new AjaxOptions { HttpMethod = "Post" }))
@using (Html.BeginForm("Index", "Home"))

Finally wrong action in browser looks like this :

form action="/man-parfume" data-ajax="true" data-ajax-method="Post" id="form0" method="post"> form action="/man-parfume" method="post"> input type="submit" value="send" />

I wrote controller as a home in begin form but it changed when Html.BeginForm rendered.

How can I post the form to Home/Index?

You may use <form action="@Url.RouteUrl("Default", new { controller="Home", action="Index"}" method="post"> instead Html.BeginForm.

As to Ajax.BeginForm it may be changed on jQuery function:

   $.ajax({
      type: "POST",
      url: "@Url.RouteUrl("Default", new { controller="Home", action="Index"}",
      data: data,
      success: success,
      dataType: dataType
    });