The caste system in India was changed as a result of the social unrest in the late 1920s.
 Since the 1980s, caste has become a major controversy in the politics of India
 Corbridge concludes that British policies towards India's numerous princely sovereign states, as well as enumeration of the population into rigid categories during the 10-year census, particularly with the 1901 and 1911 census, contributed towards the hardening of caste identities

