[thras]

Maybe things have changed since 1985. This article found that 33% of all marriages were inbred in Bangalore, Mysore, and Karnataka: http://www.jstor.org/pss/2803361

Also, according to the article I just linked, "The highest rates of inbreeding were observed in the Hindu community among whom there was a notable preference for uncle-niece marriages."

[boundlessdreamz]

Probably because I'm from Kerala and as mentioned in the article you linked, the incidence of cousin marriages were just 4.5%.