The Sanskrit language, whatever be its antiquity, is of a wonderful structure; more perfect than the Greek, more copious than the Latin, and more exquisitely refined than either, yet bearing to both of them a stronger affinity, both in the roots of verbs and the forms of grammar, than could possibly have been produced by accident; so strong indeed, that no philologer could examine them all three, without believing them to have sprung from some common source, which, perhaps, no longer exists; there is a similar reason, though not quite so forcible, for supposing that both the Gothic and the Celtic, though blended with a very different idiom, had the same origin with the Sanskrit …

— Sir William Jones, 1786

The Rigvedic Sanskrit is one of the oldest attestations of any Indo-Aryan language, and one of the earliest attested members of the Indo-European language family. The discovery of Sanskrit by early European explorers of India led to the development of comparative Philology. The scholars of the 18th century were struck by the far reaching similarity of Sanskrit, both in grammar and vocabulary, to the classical languages of Europe. Intensive scientific studies that followed have established that Sanskrit and many Indian derivative languages belong to the family which includes English, German, French, Italian, Spanish, Celtic, Greek, Baltic, Armenian, Persian, Tocharian and other Indo-European languages.

The evolution of language within India may be distinguished over three periods: old, middle and modern Indo-Aryan. The classical form of old Indo-Aryan was sanskrit meaning polished, cultivated and correct, in distinction to Prakrit – the practical language of the migrating masses evolving without concern to proper pronunciation or grammar, the structure of language changing as those masses mingled, settled new lands and adopted words from people of other native languages. Prakrita became middle Indo-Aryan leading to Pali (the language of early Buddhists and Ashoka era in 200-300 BCE), Prakrit (the language of Jain philosophers) and Apabhramsa (the language blend at the final stage of middle Indo-Aryan). It is Apabhramsa, scholars claim, that flowered into Hindi, Gujarati, Bengali, Marathi, Punjabi and many other languages now in use in India’s north, east and west. All of these Indian languages have roots and structure similar to Sanskrit, to each other and to other Indo-European languages. Thus we have in India three thousand years of continuous linguistic history recorded and preserved in literary documents. This enables scholars to follow language evolution and observe how, by changes hardly noticeable from generation to generation, an original language alters into descendant languages that are now barely recognisable as the same.

Sanskrit has had a profound impact on the languages and literature of India. Hindi, India’s most spoken language, is a “Sanskritised register” of the Khariboli dialect. In addition, all modern Indo-Aryan languages, Munda languages and Dravidian languages, have borrowed many words either directly from Sanskrit (tatsama words), or indirectly via middle Indo-Aryan languages (tadbhava words). Words originating in Sanskrit are estimated to constitute roughly fifty percent of the vocabulary of modern Indo-Aryan languages, and the literary forms of (Dravidian) Telugu, Malayalam and Kannada. Tamil, although to a slightly smaller extent, has also been significantly influenced by Sanskrit. Part of the Eastern Indo-Aryan languages, the Bengali language arose from the eastern Middle Indic languages and its roots are traced to the 5th-century BCE Ardhamagadhi language.

Hindi is mutually intelligible with Urdu, both languages being standardised registers of Hindustani. Whilst Hindi is often associated with Hinduism, Urdu is generally associated with South Asian Muslims. The main difference between the two is that Hindi is generally written in the Devanagari script, whilst Urdu is written in Nastaliq, but, when spoken colloquially, both are mutually intelligible. Mutual intelligibility decreases, however, in specialised contexts where Urdu has borrowed words from Persian and Arabic, whilst Hindi has done so from Sanskrit and English.

Tamil, one of India’s major classical language, descends from Proto-Dravidian languages spoken around the third millennium BCE in peninsular India. The earliest inscriptions of Tamil have been found on pottery dating back to 500 BC. Tamil literature has existed for over two thousand years and the earliest epigraphic records found date from around the 3rd century BCE.

Telugu, one of India’s major classical language, descends from South-Central Dravidian language spoken around the third millennium BCE in all over south India. Early inscriptions date from 620 AD and literary texts from the 11th century, written in a Telugu script adapted from the Bhattiprolu script of the early inscriptions.

Another major Classical Dravidian language, Kannada is attested epigraphically from the mid-1st millennium AD, and literary Old Kannada flourished in the 9th- to 10th-century Rashtrakuta Dynasty. As a spoken language, some believe it to be even older than Tamil due to the existence of words which have more primitive forms than in Tamil. Pre-old Kannada (or Purava HazheGannada) was the language of Banavasi in the early Common Era, the Satavahana and Kadamba periods and hence has a history of over 2000 years. The Ashoka rock edict found at Brahmagiri (dated 230 BCE) has been suggested to contain a word in identifiable Kannada.

In addition to Indo-European and Dravidian languages, Austro-Asiatic and Tibeto-Burman languages are in use in India. Genomic studies of ethnic groups in India suggests the Austro-Asiatic tribals were likely the earliest settlers in India. India’s language and cultural fusion is not only because of large migrations of Indo-Aryans from central Asia and west Eurasia through the northwest, the genome studies suggest a major wave of humans possibly entered India, long ago, through the northeast, along with tribal populations of Tibeto-Burman origins. Genome studies of Fst distances suggest the northeastern Himalayas acted as a barrier, in the last 5000 years, to human migration as well as to admixing. Languages spoken in this part of India include Austro-Asiatic (e.g. Khasi) and Tibeto-Burman (e.g. Nishi).

Manuscript illustration of the Battle of Kurukshetra.
According to the 2001 and 2011 India census, Hindi is the most spoken language in India, followed by Bengali, Telugu, Marathi, Tamil and Urdu.[95] In contemporary Indian literature, there are two major literary awards; these are the Sahitya Akademi Fellowship and the Jnanpith Award. Eight Jnanpith awards have been awarded in Kannada, six in Hindi, five in Bengali, four in Oriya and Malayalam, three each in Marathi, Gujarati, Urdu and two each in Assamese, Telugu and Tamil.

Epics

The Rāmāyaṇa and the Mahābhārata are the oldest preserved and well-known epics of India. Versions have been adopted as the epics of Southeast Asian countries like Philippines, Thailand, Malaysia and Indonesia. The Ramayana consists of 24,000 verses in seven books (kāṇḍas) and 500 cantos (sargas), and tells the story of Rama (an incarnation or Avatar of the Hindu preserver-god Vishnu), whose wife Sita is abducted by the demon king of Lanka, Ravana. This epic played a pivotal role in establishing the role of dhárma as a principal ideal guiding force for Hindu way of life.[97] The earliest parts of the Mahabharata text date to 400 BC and is estimated to have reached its final form by the early Gupta period (c. 4th century AD). Other regional variations of these, as well as unrelated epics include the Tamil Ramavataram, Kannada Pampa Bharata, Hindi Ramacharitamanasa, and Malayalam Adhyathmaramayanam. In addition to these two great Indian epics, there are five major epics in the classical Tamil language — Silappatikaram, Manimekalai, Civaka-cintamani and Valayapathi-kundalakesi.