And mostly young males...
"...Stated another way, and using the same databases, the system not only favors young, Hindu males from India, it favors those from just the three southern Indian states served by those two consulates.
The total population of Andhra Pradesh, Tamil Nadu, and Karnataka comes to about 218 million. About 70 percent of H-1B visas are granted to India, and 60 percent of those go to these three states. Think about the difference between those two numbers for a moment; 42 percent of the worldwide total of H-1Bs come from southern India, which has only 3.0 % of the world's population..."