How to Create new Customer billing and shipping address

$_custom_address = array (

    'firstname' => 'Sanjay',

    'lastname' => 'Rao',

    'street' => array (

        '0' => 'Line address part1',

        '1' => 'Line address part2',

    ),

    'city' => 'Ahemdabad',

    'region_id' => '',

    'region' => '',

    'postcode' => '380015',

    'country_id' => 'IN', /*India */

    'telephone' => '1234567890',

);

$customAddress = Mage::getModel('customer/address')

$customAddress->setData($_custom_address)

            ->setCustomerId($customer->getId())

            ->setIsDefaultBilling('1')

            ->setIsDefaultShipping('1')

            ->setSaveInAddressBook('1');

try {

    $customAddress->save();

}

catch (Exception $ex) {

    //Zend_Debug::dump($ex->getMessage());

}