change store address magento

$Aditya = new Mage_Core_Model_Config();
$stnm = "b-67,okhla, phase1";
$Aditya ->saveConfig('general/store_information/address', $stnm, 'stores', 2);



$Aditya ->saveConfig('general/store_information/address', 'value', 'scope', STORE_ID);