In the late 1970s, I sat down with the mathematical theorist George Oster to work out the principles of caste and the division of labor in the social insects.

WSJ: Great Scientists Don't Need Math

And watch out for the amendment to bring caste within the scope of equality legislation.

BBC: Week ahead

It hit me when I read the information on participants and figured out that even among the press there was a caste system.

FORBES: Exclusion and Inclusion at Davos

Although the commercial bania caste was useful in kick-starting Indian capitalism, Mr Das points out that in a liberalised economy governed by rules rather than patronage, companies cannot afford to hire employees on the basis of caste.

ECONOMIST: India��s choices

Today, in many parts of the country, the identity wars that engulfed India during the 1990s - when religion and caste advanced as the basis of claims to special privileges - seem to have played themselves out.

BBC: Why India is at a crucial crossroads