I would say about 30% of my Indian coworkers over the years have been vegan.
I think the challenge is that, unlike a lot of Western vegans, they don’t go out of their way to talk about it. My second job, I knew day 1 about the white girl who was vegan. It took me 2 years to learn that 4 of my Indian coworkers were vegan since birth. And I only learned it because they learned I was getting into Indian food so they all started bringing stuff in for me to try. Entire meals. Incredible meals. I miss that job, lol.