[InclinedPlane]

It's probably worth bringing up a couple other famous Indian scientists such as Subrahmanyan Chandrasekhar, Srinivasa Ramanujan, and Chandrasekhara Venkata Raman. These three folks have made major contributions to science and mathematics, in the same league as, say, Heisenberg, Bohr, or Riemann. And even though there are important phenomena or properties named after them (e.g. Raman spectroscopy, Chandrasekhar limit, etc.) as people they are far, far less well known than European scientists.

[elliptic]

I don't think those 3 are any less well-known than other physicists and mathematicians of similar accomplishments. Ramanujan, in particular, because of his romantic story, is far more well known than his influence might suggest. His intellect might well have been the equal of Riemann's, but one can't honestly say his contributions even approach Riemann's. The same goes for the the physicists - Bohr was one of the three or four most important physicists of the last century, and Heisenberg was one of the top 10, probably.