You do it through whatever frequent flyer mileage program youre using.

Also consider Mumbai and Calcutta. They are each about $300 extra for the couple hour flight to delhi, but they are still options.

Otherwise, you might have to fork up the extra 15K miles and do jfk-nrt and nrt-del on two separate tickets.

Edited to add that Calcutta might not be an option. AI runs to Bombay from CCU but I don't know about Delhi.

[This message has been edited by Darren (edited 10-29-2003).]