If you want DL Miles, how about DL/KLM through AMS.

Available at KLM.com from 53K INR per person (depending on the exact dates), 100% miles on Delta including MQM (a return trip will give you around 18,5K miles).

Changes from 3000 INR per person, luggage allowance 2PC per pax.

Also Amsterdam is a pretty clear and simple airport to transit at, customs is at the final destination (unlike CO through EWR) and the schedule is decent IMO.