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".
People's Linguistic Survey of India
Of all the languages documented by PLSI, 480 are languages spoken by tribals and nomadic tribes, while about 80 are coastal languages. Arunachal Pradesh is the state with the highest number of languages, with as many as 66 languages spoken there, while West Bengal has the highest number of scripts, nine, and around 38 languages. The scripts that exist in Bengal are Ol Chicki (Santhal), Kol Ho, Barangh Kshiti, Lepcha, Sadri and Limbu besides Bengali, Urdu and Nepali. Languages with increasing numbers of speakers are Byari in Karnataka, Bhojpuri in Uttar Pradesh and Bihar, Khasi in Meghalaya, Mizo in Mizoram, Kumouni in Uttarakhand, Kutchhi in Gujarat and Mewati in Rajasthan. 400 million of the Indian population speak Hindi and it remains the most popular language of India, while the number of Indian people with English as their mother language has gone up from one hundred eighty-seven thousand in 1971 to 10 million in 2011.