India
India is home to two major language families: Indo-Aryan (spoken by about 74% of the population) and Dravidian (spoken by 24% of the population). Other languages spoken in India come from the Austroasiatic and Sino-Tibetan language families. India has no national language. Hindi, with the largest number of speakers, is the official language of the government. English is used extensively in business and administration and has the status of a "subsidiary official language"; it is important in education, especially as a medium of higher education. Each state and union territory has one or more official languages, and the constitution recognises in particular 22 "scheduled languages".
Hindi in Bihar
Despite the large number of speakers of Bihari languages, these languages have not been constitutionally recognised in India. Hindi is the language used for educational and official matters in Bihar, with English occasionally used in education and government. These languages was legally absorbed under the subordinate label of HINDI in the 1961 Census. Such state and national politics are creating conditions for language endangerments.