Hello, ajeetsingh
You should define the list of actions not secured by formid checking in your NotifTmplts controller to overcome this problem:
PHP Code:
/**
* Define the actions with no secure token
*
* @return array
*/
public static function defineFreeFormIdActions()
{
$list = parent::defineFreeFormIdActions();
$list[] = 'notify';
return $list;
}