I've worked with a lot of Indians over the years. It's not just a language thing. We do think in the same patterns. The engineering solutions to problems are indistinguishable. Solutions that Chinese, Vietnamese, Philippine or Japanese engineers come up with, although perfectly valid, just 'feel' different. Don't know why.
What I find even more interesting is how close the senses of humor are in both cultures.
India was invaded by the Aryans of Central Asia, who likely had a lot in common with the Celtic people who went on to settle Europe.