It was envisioned that Hindi would become the sole working language of the Union Government by 1965 (per direc [readmore]
It was envisioned that Hindi would become the sole working language of the Union Government by 1965 (per directives in Article 344 (2) and Article 351), with state governments being free to function in the language of their own choice. However, widespread resistance to the imposition of Hindi on non-native speakers, especially in South India (such as the those in Tamil Nadu), Maharashtra, Andhra Pradesh and West Bengal, led to the passage of the Official Languages Act of 1963, which provided for the continued use of English indefinitely for all official purposes, although the constitutional directive for the Union Government to encourage the spread of Hindi was retained and has strongly influenced its policies.
At the state level, Hindi is the official language of the following Indian states: Bihar, Chhattisgarh, Haryana, Himachal Pradesh, Jharkhand, Madhya Pradesh, Rajasthan, Uttar Pradesh, and Uttarakhand. Each may also designate a "co-official language"; in Uttar Pradesh, for instance, depending on the political formation in power, this language is generally Urdu. Similarly, Hindi is accorded the status of official language in the following Union Territories: Andaman & Nicobar Islands, Chandigarh, Dadra & Nagar Haveli, Daman & Diu, National Capital Territory.
National-language status for Hindi is a long-debated theme. An Indian court clarified that Hindi is not the national language of India because the constitution does not mention it as such.