The caste system in India caused much social unrest during the 1920s.
 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
The poverty level in India's lowest castes dropped from 49 percent to 39 percent between 1995 and 2005, compared to a national average change from 35 to 27 percent

