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
Linguistically, Hindi and Urdu are two registers of the same language and are mutually intelligible. Hindi is written in the Devanagari script and uses more Sanskrit words, whereas Urdu is written in the Perso-Arabic script and uses more Arabic and Persian words. Hindi is the most commonly used official language in India. Urdu is the and "lingua franca" of Pakistan and is one of 22 official languages of India.