 Other poor caste groups as well as ethnic groups such as Muslims in India have also made improvements over the 16-year period, but their improvement lagged behind that of Dalits and adivasis.The net percentage school attainment for Dalits and Muslims were statistically the same in 1999.A 2007 nationwide survey of India by the World Bank found that over 80 percent of children of historically discriminated castes were attending schools.