code igniter- form tag

[eluser]vamsimohan1983[/eluser]
this is my controller :

<?php
session_start();
class Adminv extends CI_Controller {

public function index()
{
$this->load->view('adminverification');//exact file name//

}

public function register()
{
$this->load->helper('form');
$this->load->helper('html');
$this->load->model('admin_mod');

if(isset($_POST['Submit']))
{

$from = $this->input->post('from');
$fciti = $this->input->post('fciti');
$to= $this->input->post('$to');
$tciti= $this->input->post('tciti');
$fare= $this->input->post('fare');
$travels= $this->input->post('$travels');

$this->Admin_mod->entry_insert();//class name//

}


}



}