This article is part of a Nature series examining data on ethnic or racial diversity in science in different countries. See also: How UK science is failing Black researchers — in nine stark charts.

Add Yahoo as a preferred source to see more of our stories on Google. A census official collects information from a household in Bonda, on the outskirts of Gauhati, India, during the 2011 national ...

Caste is an ancient system of social hierarchy based on one’s birth that is tied to concepts of purity and social status. Its history, evolution and current state are complicated. A move to outlaw ...

Caste is an ancient system of social hierarchy based on one’s birth that is tied to concepts of purity and social status. Its history, evolution and current state are complicated. A move to outlaw ...

For millions across India, a rigid caste system thousands of years old still dictates much of daily life – from social circles to dating pools to job opportunities and schooling. The Indian government ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Caste is an ancient system of social ...

(CNN) — For millions across India, a rigid caste system thousands of years old still dictates much of daily life – from social circles to dating pools to job opportunities and schooling. CNN — (CNN) — ...