Dialects: The Variation Within Each Language

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India's linguistic map is usually presented as a list of languages: Hindi, Bengali, Telugu, Marathi, Tamil, Urdu, Gujarati, Kannada, Malayalam, Odia, Punjabi, Assamese and the rest of the twenty two languages listed in the Eighth Schedule of the Constitution. That list is a legal and administrative artefact. The linguistic reality underneath it is far messier, because each of those named languages contains within it a great deal of internal variation, and the boundary between a dialect and a language is drawn by politics at least as often as by grammar.

The scale of the variation is documented. The Linguistic Survey of India, conducted under George Abraham Grierson between 1894 and 1928, catalogued a very large number of languages and dialects across the subcontinent and remains a foundational reference despite its colonial framing and methodological limits. The Indian census records many thousands of raw responses when people are asked their mother tongue, which are then grouped into a much smaller number of recognised languages. That grouping process is where the interesting decisions get made. Speech varieties that many linguists would treat as distinct languages, on the ordinary criterion of mutual intelligibility, are recorded instead as dialects of a larger one, which inflates the count of the larger language and deflates the visibility of the smaller.

The Hindi belt and what gets counted as Hindi

The clearest case is Hindi. The census category of Hindi absorbs an enormous range of speech varieties across northern and central India, including Bhojpuri, Awadhi, Braj Bhasha, Magahi, Maithili, Chhattisgarhi, Haryanvi, Marwari, Rajasthani, Bundeli and Bagheli. Some of these have literary traditions older and richer than that of standard Hindi itself. Awadhi is the language of Tulsidas's Ramcharitmanas, written in the sixteenth century and still recited daily across the north. Braj Bhasha carries the devotional poetry of Surdas and much of the Krishna tradition. Bhojpuri has tens of millions of speakers, a large film and music industry, and a global diaspora presence in Mauritius, Fiji, Trinidad, Guyana and Suriname, where its descendants are sometimes called Caribbean Hindustani.

Standard Hindi, by contrast, is a comparatively recent standardisation based on the Khari Boli speech of the Delhi region, written in Devanagari and formalised in the nineteenth and twentieth centuries. Its close relation to Urdu is the most instructive example of the dialect question anywhere in the world. Spoken colloquially, Hindi and Urdu are largely the same language: the grammar is shared and the everyday vocabulary overlaps almost completely, so a conversation in a Delhi market and one in a Lahore market are mutually intelligible. They diverge in script, Devanagari for Hindi and a Perso Arabic script for Urdu, and in the sources of their formal and technical vocabulary, Sanskrit for Hindi and Persian and Arabic for Urdu. Linguists frequently treat them as registers of a single language, sometimes called Hindustani. They are nonetheless the national languages of separate states and carry entirely separate identities, which is a demonstration that the question of what constitutes a language is only partly a linguistic one.

Maithili shows the reverse movement. Spoken in northern Bihar and parts of Nepal, with a distinct script tradition in Tirhuta and a body of literature including the fourteenth century poet Vidyapati, it was long counted under Hindi. After sustained campaigning it was added to the Eighth Schedule of the Constitution in 2003, along with Bodo, Dogri and Santali. What changed was recognition, not the speech itself. Bhojpuri campaigners have sought the same status and have not yet obtained it.

Variation in the other language families

The pattern is not confined to the Indo Aryan north. Tamil, a Dravidian language with a continuous literary record going back roughly two thousand years to the Sangam corpus, exhibits a sharp division that linguists call diglossia: the formal written and oratorical register, sometimes called centamil, differs substantially from everyday spoken Tamil, and children effectively learn both. Regional spoken varieties differ further between Chennai, Madurai, Kongu Nadu, Jaffna in Sri Lanka and the Tamil communities of Malaysia and Singapore. Sri Lankan Tamil preserves features that mainland varieties have lost, and speakers on both sides notice the difference immediately.

Similar internal variation runs through the other Dravidian languages. Telugu differs noticeably between coastal Andhra, Rayalaseema and Telangana, and the political separation of Telangana into a distinct state in 2014 was accompanied by an explicit assertion of the Telangana variety's legitimacy after decades in which the coastal Andhra standard had dominated cinema, broadcasting and textbooks. Kannada has an old distinction between the varieties of the Mysore region and northern Karnataka. Marathi differs between Pune, which supplies the standard, and Varhadi in the Vidarbha region or Malvani on the Konkan coast. Konkani itself, spoken in Goa and along the coast, was long argued over as a possible dialect of Marathi before being recognised as a separate language and made the official language of Goa.

Then there are the language families that the Eighth Schedule barely reaches. The northeastern states contain a great density of Tibeto Burman languages, many with small speaker populations and no writing tradition, and Nagaland's speech diversity is such that English serves as the state's official language for practical reasons. Austroasiatic languages of the Munda group, including Santali, Ho and Mundari, are spoken across Jharkhand, Odisha and West Bengal. Many of these are classified by UNESCO as vulnerable or endangered, and the pressure on them comes not from English but from the dominant regional language of their own state, which controls schooling, employment and administration.

The stakes are practical. Research on education repeatedly finds that children learn to read faster in a language they already speak at home, and India's own National Education Policy of 2020 endorsed mother tongue medium instruction in early years. Delivering that is genuinely hard when the state has designated a standard variety that differs from what the child speaks, when textbooks exist only in the standard, and when parents themselves often prefer English or the state language because that is where the jobs are. The dialect question in India is therefore never only about grammar. It is about which speech gets a script, a school, a newspaper and a census line, and which is quietly counted as something else.

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