Not to discredit their achievements, but the DoD won't give them anything of value related to defense in a million years because India's primary military source and partner is Russia.
They have a mutual interest in keeping China in check, but they don't seem to want to invest in trying to flip India when they already have Pakistan.
Not to mention US arms are fricken expensive. India already had issues paying for the Rafales from France, they couldn't afford to buy overinflated US gear even with their rather large economy. Even collaboration is annoyingly hard if you aren't in NATO.
Broke Pakistan only got it by hiding OBL and making the US go on a goose chase handing out free money to search for one guy, which is why they haven't bought anything new from the US after 2011.