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.
Language secessionism
The national language of Pakistan and official languages in many parts of India, the Khariboli dialect has become the chief language variety for use in Hindi and Urdu. Grammatically, Hindi and Urdu are the same but differ in their lexicons. Hindi tends to revitalize its Sanskrit words and purges words borrowed from Persian and Arabic while Urdu does the opposite. In essence, apart from their scripts, the lexicon is what distinguishes Urdu and Hindi. Also, there are other Indo-Aryan languages that are classed as Hindi but are not necessarily the same as Hindi and Urdu. Their dialects are close to the Khariboli dialect, which sets the grammatical standard over other Indo-Aryan languages both far and near. These languages will tend to diverge, especially through the influence and accents of surrounding native languages in the communities.