在验证表单false并重新提交表单后，控制器名称double出现在codeigniter中

i have a simple login form and validating it

localhot/edf/auth/user

if validation === false load login page again with error and renter the proper data and resubmit the form but controller name appear double.like

localhost/edf/auth/auth/user

get 404 eror.

public function index()
{

    $Data['banks'] = $this->AuthModel->Banks()->result();
    $Data['view'] = "Auth";
    $this->load->view('dashboard',$Data);
}

public function User(){


    $this->form_validation->set_rules('bank', 'Bank', 'required|numeric',);
    $this->form_validation->set_rules('branchcode', 'Branch Code', 'required|numeric');
    $this->form_validation->set_rules('User', 'Email', 'required');
    $this->form_validation->set_rules('auth', 'Password', 'required');

    if ($this->form_validation->run() == FALSE)
        {
            $Data['banks'] = $this->AuthModel->Banks()->result();
            $Data['view'] = "Auth";
            $this->load->view('dashboard',$Data);
        }
    else
        {
            $Data['view'] = "";
            $this->load->view('dashboard',$Data);
        }

}