Hi i hava tried implementing this code for url rewriting to lower case but it is not working

protected void Application_BeginRequest(object sender, EventArgs e)
        {
                       string lowercaseURL = (Request.Url.Scheme + "://" + HttpContext.Current.Request.Url.Authority + HttpContext.Current.Request.Url.AbsolutePath);
            if(Regex.IsMatch(lowercaseURL,@"[A-Z]"))
            {
                lowercaseURL = lowercaseURL.ToLower() + HttpContext.Current.Request.Url.Query;

                Response.Clear();
                Response.Status = "301 Moved Permanently";
                Response.AddHeader("Location", lowercaseURL);
                Response.End();
            }
        }

it is working well in visual studio on my computer but when i host it on my server in godaddy its not working . can any one help me

example

google is considering urls

www.mydomain.com/Hyderabad.aspx and www.mydomain.com/hyderabad.aspx as two different pages and my page ranks are getting spoiled .

please help me