The scheduled tribes owned only 3.7% of non-farm enterprises despite being 7.7% of the population.

BBC: Caste and entrepreneurship in India

Based on the surnames - which usually give away caste affiliation - of the members of these company boards, the intrepid researchers classified them into Forward Castes, Other Backward Classes (OBCs), Scheduled Castes and Tribes and foreign directors.

BBC: Why Indian boardrooms have no diversity

Delving into the relationship between caste and entrepreneurship, the researchers have found that scheduled castes and tribes, the most disadvantaged groups in Hinduism's hierarchy, owned very little businesses despite a decade of sprightly economic growth and a long history of affirmative action.

BBC: Caste and entrepreneurship in India