I had a manager who led the way to hiring in/from India. My field was not exactly "programming" although I wrote tons of it. It was test engineering where I developed hardware interfaces and wrote software for automatic test of avionics hardware. Early on she brought in programmers who didn't understand the electronics that they were writing software to test. It did not go well. By the time I retired they were taking over much, if not most of the software work I did, except in areas of ITAR and dual use restricted technology. I was still doing the hardware stuff and was the technical lead on projects they were involved in.

I will say that the ones I worked with in the end were competent, hardworking and pleasant to work with. Like Americans and the ones that I worked with from other countries, some were very good and some not so much. But this thread of conversation is about them as people. They were people. In the end, race and culture made little to no difference in my experience with working with them.