I have custom form which has password field values and by using that user will be created in our website. So the requirement is to use password policy module functionalities to this form also. The form is able to show the policies below the password field and now those suggestions like use alphanumeric etc.. are not mandatory. But how I can mandate the password must contain alphanumeric etc etc... Please help me in this regard.
You can use the 'password_confirm" #type in your form to get the exact field Drupal uses.
Add this to your Form function.
$form['account']['pass'] = array( '#type' => 'password_confirm', '#size' => 25, '#description' => t('To set or change the password, enter the new password in both fields.'), );