🇮🇳How does India mark Official languages: in the constitution, in a statute, or nowhere at all?

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India is the only one of these seven markets whose constitution devotes a whole Part to language. Article 343(1): the official language of the Union shall be Hindi in Devanagari script, and the numerals for official purposes of the Union shall be the international form of Indian numerals. That even the choice of numeral forms is written into the constitution says something about how concrete the arguments were. Clause (2) then sets a fifteen-year transition: for fifteen years from the commencement of the constitution, English continues to be used for all the official purposes of the Union for which it was being used before. That fifteen-year clause is the pivotal design in Indian language politics — it wrote in an endpoint, and what actually happened as the endpoint approached produced further legislation and amendment. The Part also handles the official languages of the states, the language of communication between one state and another, and the language of the Supreme Court and the High Courts. Next to the one-sentence settlements of Indonesia and Brazil, India is not answering "which language" but how the levels of a multilingual state speak to one another.