The one-way tip above might help you. UA has availability into NYC from BLR on 18-22 of May and again on 26-29 for 42.5k plus taxes and fees.

Then you could try and get an Etihad or other AA award, or find some more UA miles for the return. Note that is the end of what will be a holiday weekend for many, so you might jump on the return as soon as you find availability.

FWIW, UA shows no availability going back on July 8 on their calendar, but if you look closer there is a flight available. It's a long route, kind of interesting to some FT'ers maybe, but maybe difficult for some people as it is NYC/CAI/BKK/BLR. It is also just 42.5 plus tax/fees.