Join Date: Oct 2005
Location: Ponte Vedra Beach, FL
Programs: DL PM, HH Diamond, Fairmont Prem, SPG Gold, Priority Club Plat/IC Amb, AmEx Plat
Posts: 10,839
I think Delta would be able to apply the ticket value towards your ticket to India.
If you're looking to cancel your tickets, you will have up to one year (from the date you bought the tickets to rebook with Delta. There will be a change fee.