BFG has international warranty. I had mailed them a month ago regarding this, the CC confirmed it and told tat in case something went wrong, u'd have to send the card to one of their warehouses for RMA. But the thing is I dunno if they have a presence here in India, like an authorized distributor or something..
but u have to give full attention to the co-ordination part when u mail ur grieviances @ ASUS US and ask them to get it done via there service centers present in India.