Languages with official status in India
Even though the English language is not included in the Eighth Schedule (as it is a foreign language), it is one of the official languages of the Union of India.
Of the 22 official languages, 15 are Indic, four are Dravidian, two are Tibeto-Burman, and one is Munda.
People's Linguistic Survey of India
The Eighth Schedule of the Constitution of India recognizes 22 scheduled languages, excluding English, and the linguistic policies and funding of the Indian government are organised around this information. However, this information does not adequately convey the linguistic diversity of India. The 1961 Census of India had recorded 1652 languages being in use in India. However, it was decided to exclude languages spoken by less than 10,000 people in the 1971 Census, which brought down the figure to 108 languages. PLSI has followed the policy of including all languages in the survey, irrespective of the number of users. For example, it records a language called Chaimal in Tripura, which is spoken by only five people.