Navigating the Śāstras
Language at the foundation, grammar and logic as the floors above it, the schools of philosophy at the top — and debate running through every storey. A map of how traditional learning fits together.
The Map of the Texts sorted the books on the shelf. This page maps something different: the disciplines a traditional scholar had to master to read those books well. Each discipline is a śāstra — from the root śās, “to instruct, to govern” — a systematic body of teaching with its own root text, technical terms and long line of commentaries. Some are about the Veda, some about how we know anything at all, some about poetry, numbers or kingship. Together they form a building, and a student climbed it floor by floor.
Credit. This page was inspired by the study map presented in the lecture “Navigating Indian Śāstras” on the YouTube channel Prathosh_IISc. Seeker has rebuilt the idea in its own structure, layout and words, and checked the facts against the standard references listed at the end; where those differ from the lecture’s diagram, this page follows the references. Any errors are ours. This guide’s arrangement
The building at a glance
Read it from the bottom up. Tap any name to go to its page.
Cārvāka, Bauddha and Jaina are marked differently: they are nāstika schools, which do not accept the Veda’s authority — but they argued on the same floors, with the same tools.
Fourteen seats of learning
The tradition itself counted its disciplines. An early and widely quoted list comes from a law book:
वेदाः स्थानानि विद्यानां धर्मस्य च चतुर्दश ॥ purāṇa-nyāya-mīmāṃsā-dharmaśāstrāṅga-miśritāḥ,
vedāḥ sthānāni vidyānāṃ dharmasya ca caturdaśa The Vedas, together with the Purāṇas, Nyāya, Mīmāṃsā, the Dharmaśāstras and the limbs — these fourteen are the seats of learning and of dharma. Yājñavalkya Smṛti 1.3
Four Vedas, six “limbs”, and four more: the Purāṇas, logic, Vedic exegesis and law. Later writers added four “secondary” sciences — medicine (āyurveda), archery and warfare (dhanurveda), music (gāndharvaveda) and statecraft (arthaśāstra) — to make eighteen. The lists vary from text to text; what stays constant is the idea that learning is many-roomed, and that every room serves dharma. Brahmanical scheme
The foundation: language and the six limbs
Everything rests on language. The Veda was an oral text: it had to be pronounced perfectly, metred correctly, understood word by word and used in the right ritual at the right time. Six auxiliary sciences, the Vedāṅgas, grew up to make that possible. A verse of the Pāṇinīya Śikṣā pictures them as the body of the Veda: metre its feet, ritual its hands, astronomy its eyes, etymology its ears, phonetics its nose, and grammar its mouth. Tap each limb:
On the same floor stand the texts themselves — Veda, Itihāsa, Purāṇa, Āgama — and, for Tamil readers, a second classical language with its own grammar, the Tolkāppiyam, and its own canon. The Map of the Texts and Tamil Scriptures cover these.
Grammar: the discipline of disciplines
If one science deserves to be called the foundation, it is vyākaraṇa. Pāṇini (usually dated around the 4th century BCE) described the whole of Sanskrit in about four thousand terse rules, the Aṣṭādhyāyī (“Eight Chapters”), using a technical meta-language of markers and abbreviations so compact that it has been compared to a computer program. Kātyāyana added critical notes (vārttikas), and Patañjali (c. 2nd century BCE) wrote the great discussion of both, the Mahābhāṣya. The grammarians called these three “the three sages”.
Grammar was also philosophy. Bhartṛhari (c. 5th century CE), in his Vākyapadīya, argued that meaning flashes forth as a whole — the sphoṭa — and that reality itself is woven of word. His opening verse:
विवर्ततेऽर्थभावेन प्रक्रिया जगतो यतः ॥ anādi-nidhanaṃ brahma śabda-tattvaṃ yad akṣaram,
vivartate ’rtha-bhāvena prakriyā jagato yataḥ Brahman, without beginning or end, whose essence is the Word, the imperishable, appears as the objects of meaning — and from it the world unfolds. Bhartṛhari, Vākyapadīya 1.1
For students, the way in has long been simplified textbooks: Bhaṭṭoji Dīkṣita’s Siddhāntakaumudī (17th century) rearranged Pāṇini’s rules by topic, and Varadarāja’s Laghusiddhāntakaumudī, a short version of it, is still the first grammar many traditional students learn by heart.
Knowing: pramāṇa and the new logic
The next floor asks how anything is known at all. Every school had to declare its pramāṇas — perception, inference, testimony and the rest — and that choice shaped everything it could go on to claim. This guide gives that floor its own page, with a tap-a-school comparison: How We Know. For the new logic below, see Navya-Nyāya; for grammar, Vyākaraṇa; for debate, Vāda.
From the 14th century this floor grew a new storey. Gaṅgeśa of Mithilā, in his Tattvacintāmaṇi, recast the old Nyāya in a rigorous technical language for stating exactly what is related to what, and how. This Navya-Nyāya, “new logic”, flourished in Mithilā and then Navadvīpa in Bengal, and its vocabulary became the common language of scholarship: later grammarians, Mīmāṃsakas and Vedāntins all wrote in it. Students entered through Annambhaṭṭa’s Tarkasaṅgraha (17th century), a short primer still studied today.
Behind both stands an old conviction, voiced in an unexpected place — a manual of statecraft:
आश्रयः सर्वधर्माणां शश्वदान्वीक्षिकी मता ॥ pradīpaḥ sarva-vidyānām upāyaḥ sarva-karmaṇām,
āśrayaḥ sarva-dharmāṇāṃ śaśvad ānvīkṣikī matā The lamp of all sciences, the means for all undertakings, the support of all duties — so investigation has always been held to be. Kauṭilya, Arthaśāstra 1.2.12
Ānvīkṣikī, “looking into things”, is critical reasoning. Strikingly, the Arthaśāstra names Sāṃkhya, Yoga and the materialist Lokāyata as its examples — a reminder that “reason” was never owned by one school.
The views: the darśanas
At the top stand the darśanas, the schools of philosophy — each a complete account of what exists, how we know it and how we are freed. The Six Darśanas page introduces them; here is each in one card, with its root text and the number of ways of knowing it accepts.
२५SāṃkhyaSpirit and matter
Root text: Īśvarakṛṣṇa’s Sāṃkhyakārikā (c. 4th–5th century CE). What exists: twenty-five principles (tattvas), from conscious spirit and primal matter down to the elements. Ways of knowing: three. Go deeper →
योगYogaStilling the mind
Root text: Patañjali’s Yoga Sūtra (many date it around 400 CE). What exists: Sāṃkhya’s map, plus Īśvara as a special self. Ways of knowing: three (Yoga Sūtra 1.7). Go deeper →
न्यायNyāyaThe method of argument
Root text: Gautama Akṣapāda’s Nyāya Sūtra (compiled by around the 2nd–3rd century CE). What exists: sixteen topics a debater must master, from the means of knowledge to the ways of losing a debate. Ways of knowing: four. Go deeper →
अणुVaiśeṣikaCategories and atoms
Root text: Kaṇāda’s Vaiśeṣika Sūtra (perhaps the last centuries BCE). What exists: six categories (later seven), including substance, quality and motion, with the world built of atoms. Ways of knowing: two. Go deeper →
धर्मMīmāṃsāReading the Veda
Root text: Jaimini’s Mīmāṃsā Sūtra (perhaps the last centuries BCE), with Śabara’s commentary. Its subject: dharma, known from Vedic injunction, and the rules for interpreting any text. Ways of knowing: five (Prābhākara) or six (Bhāṭṭa). Go deeper →
ब्रह्मVedāntaThe end of the Veda
Root texts: the “three foundations” — Upaniṣads, Bhagavad Gītā and Bādarāyaṇa’s Brahmasūtra (c. 2nd century BCE – 5th century CE). Its subject: Brahman, the Self and the world, read very differently by Advaita, Viśiṣṭādvaita, Dvaita and others. Ways of knowing: three to six, by sub-school. Go deeper →
🌍CārvākaOnly this world
Root text: the Bṛhaspati Sūtra, lost — known only from fragments quoted by opponents. What exists: the four elements; consciousness arises from the body. Ways of knowing: one, perception. Go deeper →
☸️BauddhaNo fixed self
Founded by the Buddha (c. 5th century BCE); its logicians Dignāga and Dharmakīrti (5th–7th centuries) reshaped every school’s epistemology. What exists: momentary events, without an enduring self. Ways of knowing: two. Go deeper →
✋JainaMany-sidedness
Mahāvīra (c. 5th century BCE) and Umāsvāti’s Tattvārtha Sūtra. What exists: living souls and non-living matter; every claim is true only “from a standpoint” (anekāntavāda). Ways of knowing: three, in the usual reckoning. Go deeper →
The six-and-three scheme is itself a later tidying. Medieval compendia counted differently: one 14th-century survey lists sixteen systems, and includes Pāṇini’s grammar among the philosophies. This guide’s arrangement
The applied śāstras and the sciences
Alongside the climb to philosophy ran disciplines for living in the world. Here is a short tour; each has its own page in the Śāstra & Sciences section.
Dharma, artha, kāma
The three worldly aims of life (see The Four Aims) each had a śāstra. Dharmaśāstra — the law books such as Manu and Yājñavalkya — is covered on Dharma Texts. Arthaśāstra, attributed by tradition to Kauṭilya, minister of Candragupta Maurya (c. 300 BCE), is a hard-headed manual of government, economy, law and war; many historians think the text we have was compiled a few centuries later. Kāmaśāstra, best known through Vātsyāyana’s Kāmasūtra (c. 3rd century CE), treats pleasure, love and the cultivated life.
Sāhitya: the science of beauty
Indian literary theory begins with Bharata’s Nāṭyaśāstra on drama (compiled in the early centuries CE), which taught that a performance produces rasa, the “taste” of an emotion savoured by the audience. In 9th-century Kashmir, Ānandavardhana argued that the soul of poetry is dhvani, “resonance” — meaning suggested rather than said — and Abhinavagupta (c. 1000) joined rasa to dhvani in a theory still debated today. Tamil has its own poetics, from the Tolkāppiyam’s inner (akam) and outer (puṟam) worlds of love and war.
Gaṇita and jyotiṣa
From the Vedāṅga of timekeeping grew a long tradition of gaṇita (mathematics) and astronomy. Āryabhaṭa’s Āryabhaṭīya (499 CE) used a place-value system and proposed that the earth rotates. Brahmagupta (628 CE) gave rules for calculating with zero and negative numbers. Bhāskara II’s Līlāvatī (12th century) became the best-loved arithmetic textbook. In Kerala, Mādhava of Saṅgamagrāma (c. 14th–15th century) and his school found infinite series for π and the sine, centuries before they were rediscovered in Europe. Jyotiṣa also includes horoscopy, a separate branch whose claims are matters of faith rather than science.
Āyurveda and the arts
Āyurveda, “the knowledge of life”, rests on the Caraka Saṃhitā (internal medicine) and the Suśruta Saṃhitā (surgery), both reaching their present form in the early centuries CE. Caraka’s text even sets out rules for debate between physicians. Music (gāndharva, later saṅgīta), architecture (vāstu, śilpa) and the temple-building manuals of the Āgamas complete the circle: in this tradition, every craft can be a śāstra.
Vāda: the art of debate
What binds the building together is argument. Every school learned to state its rival’s view — the pūrvapakṣa — so strongly that the rival would sign it, before answering it. The Nyāya Sūtra (1.2.1–3) distinguishes three kinds of talk: vāda, honest discussion aimed at truth; jalpa, wrangling to win; and vitaṇḍā, mere attack with no position of one’s own. Mīmāṃsā gave the method a standard shape, the five-part adhikaraṇa, used to settle every disputed passage. Tap through it:
The great debates ran for centuries, through commentaries rather than face to face. Buddhist and Nyāya logicians answered each other for five hundred years. In the 16th century the Dvaita scholar Vyāsatīrtha’s Nyāyāmṛta attacked Advaita point by point; Madhusūdana Sarasvatī replied in the Advaitasiddhi; and replies to the reply followed. See Schools in Dialogue.
How a student climbed
In a traditional pāṭhaśālā, the climb typically began with memory: hymns and a thesaurus such as the Amarakośa. Then grammar through the Laghusiddhāntakaumudī, with classical poetry read alongside; then logic through the Tarkasaṅgraha; and only then the root texts of a chosen śāstra with their commentaries, under a teacher of that lineage. Courses and sequences differ between schools and regions. Varies by school
You need not enrol in a pāṭhaśālā to walk a version of the route. Here is a Scholar’s path through this guide, from the alphabet to the debates — your progress is ticked as you read:
Try this. Pick a belief you hold firmly — about God, food, politics, anything. Write the strongest case against it, so well that someone who holds that view would nod. That is a pūrvapakṣa. Only then write your answer. Notice whether your answer changed.
Questions
Do I need Sanskrit to study the śāstras?
To study them as the tradition does — root text and commentary in the original — yes, eventually. But good translations now exist for most root texts, and the ideas can be understood without the language. Learning even the script and pronunciation changes how the texts feel. Go deeper → Reading Sanskrit.
Is astrology a śāstra?
Jyotiṣa is one of the six Vedāṅgas, and in the tradition’s own terms it is a śāstra. But it combined two different things: mathematical astronomy, which produced real and lasting science, and horoscopy, whose predictive claims have not stood up to testing. Many practising Hindus value both; it helps to know which is which. Go deeper → Dharma & Modern Thought.
Where are women in this building?
Largely kept out of its formal classrooms: Vedic and śāstric study was restricted by gender and caste for most of its history, and this should be said plainly. There were exceptions — the debater Gārgī in the Upaniṣads, women poets and patrons — and much learning happened elsewhere, in vernacular devotion, music and household practice. Today women teach and study every one of these śāstras. Go deeper → Ṛṣis.
Check your knowledge:
Which Vedāṅga does the Pāṇinīya Śikṣā call the “mouth” of the Veda?
Vyākaraṇa, grammar — the foundation the other sciences speak through.
Navya-Nyāya, the “new logic”, began with…
Gaṅgeśa of Mithilā, 14th century.
In a debate, the pūrvapakṣa is…
The view to be answered — stated fairly first. Personal attack with no thesis is vitaṇḍā.
Which mathematician gave rules for calculating with zero?
Brahmagupta, in 628 CE.
॥ Pause and reflect
- Which floor of this building draws you most — language, knowing, the views, or the sciences? Why?
- The tradition required stating your opponent’s view fairly before answering. Where in your life would that change a conversation?
- What would a “Scholar’s path” look like for you, given the time you actually have?
Your notes are saved privately in this browser.
Key terms on this page
Sources & further reading
- “Navigating Indian Śāstras”, lecture on the YouTube channel Prathosh_IISc — the inspiration for this page.
- Jonardon Ganeri, Philosophy in Classical India: The Proper Work of Reason (Routledge, 2001).
- Bimal Krishna Matilal, Perception: An Essay on Classical Indian Theories of Knowledge (Oxford University Press, 1986).
- Sheldon Pollock, The Language of the Gods in the World of Men (University of California Press, 2006).
- George Cardona, Pāṇini: A Survey of Research (Mouton, 1976).
- Kim Plofker, Mathematics in India (Princeton University Press, 2009).
- Patrick Olivelle, King, Governance, and Law in Ancient India: Kauṭilya’s Arthaśāstra (Oxford University Press, 2013).
- Karl H. Potter (ed.), Encyclopedia of Indian Philosophies (Motilal Banarsidass, 1970– ).