I am using "PayPal Website Payments Standard" in my magento based e-commerce site. At the time of checkout if user eneters separate billing and shipping address and goes to paypal site for payment, then paypal shows shipping address as default along with credit card fields. I want to show billing as default there, instead of shipping.

I have removed this (line:238)

$request['address_override'] = 1; from this file `/app/code/local/Mage/Paypal/Api/Standard.php

PayPal takes shipping as default always, if so why? they should take billing, because on paypal page user is making payment.

Please advise, how I can pass billing as default instead of shipping?

This thread tells you how to change the field mappings to achieve this so it functions like it is supposed to.