I work for a company that has satellites in both India and Vietnam (among others).

Working with Vietnam is much better, if someone knows English then they have a decent enough education; and their local institutions make it possible to verify credentials. They have less social issues besides.

Indian outsourcing is almost a bit outdated... Effective machine translation and globally widespread english education, they really don't have much to offer.

Their culture essentially makes it impossible to get predictable value out of a hire.