Indian Philosophy and Religious Traditions: Upanishads, Six Schools, Charvaka, Buddhism, Jainism, Ajivikas and the Vedanta Acharyas

Start Here — Ideas, Not Names

🎯 Exam priority: Medium (T2). UPSC asks philosophy through religious history: Mahayana features (2019), Buddhist sects (2020), the terms Parivrajaka, Shramana and Upasaka (2020), the paramitas (2020), Maitreya (2018), the Sthanakvasi sect (2018), Jain animism (2023), the Buddha's epithets (2024), Ramanuja's teaching (2022), Buddhist centres (Dhanyakataka, 2023), the Upanishads (2024), and in 2026 the Jain forms of existence and aniconic Buddhist symbols.

The trick is to learn each school by one sentence, one founder and one trap. The tables give you the sentence; the bullets give you the traps.

From Vedic Ritual to Upanishadic Thought

• Rigvedic outlook. Worship of natural forces (Indra, Agni, Varuna) for worldly good, with a sense of cosmic order (rita); later Vedic ritual grew elaborate (yajnas, priests).

• Upanishadic turn (c. 800–500 BCE). Attention shifts from sacrifice to knowledge: Atman (self) and Brahman (ultimate reality) are one ('tat tvam asi' in the Chandogya Upanishad); the cycle of rebirth (samsara) is governed by karma; liberation (moksha) comes by knowledge.

• The Upanishads are older than the Puranas and are full of parables, dialogues and stories (Satyakama, Svetaketu, Gargi and Yajnavalkya). The 2024 PYQ tested exactly that — 'no parables' was the trap.

• Four goals (purushartha): dharma, artha, kama, moksha. Four stages (ashrama): brahmacharya, grihastha, vanaprastha, sannyasa. Three debts (rina): to gods, sages and ancestors. Bhagavad Gita reconciles the paths of action (karma), knowledge (jnana) and devotion (bhakti), preaching disinterested action (nishkama karma).

• A word on the terms: a Parivrajaka is a wandering renunciant, a Shramana is an ascetic (not a priest — the 2020 PYQ trap), and an Upasaka is a lay follower of Buddhism.

The Six Orthodox Schools (Astika Darshanas)

• Astika vs nastika. 'Orthodox' (astika) here means accepting the authority of the Vedas; 'heterodox' (nastika) means rejecting it. It is not about believing in God — Samkhya and Mimamsa are astika yet largely non-theistic.

• Pairs to remember: Nyaya–Vaisheshika (logic and atomism), Samkhya–Yoga (matter-consciousness dualism and practice), Purva–Uttara Mimamsa (ritual and knowledge).

Heterodox Schools — Charvaka, Buddhism, Jainism, Ajivika

Buddhism in more detail

• PYQ logic (2020). Sthaviravadins are Theravada, not Mahayana; the Lokottaravadins were an offshoot of the Mahasanghikas; and the Mahasanghikas' deification of the Buddha fostered Mahayana. So statements 2 and 3 are right. Dhanyakataka (the 2023 PYQ) lay in Andhra (near Amaravati), a Mahasanghika centre.

• Empty seat (2026). In early Buddhist art the Buddha was shown through symbols and not a human figure; the empty seat signifies the Buddha's meditation or enlightenment (as per the provisional key).

Jainism in more detail

• 24 Tirthankaras. Rishabhadeva was the first, Parshvanatha the 23rd (historical, a Varanasi prince) and Mahavira (Vardhamana, born near Vaishali, c. 6th century BCE) the 24th. The five mahavratas: ahimsa, satya, asteya, aparigraha and brahmacharya (the last added by Mahavira; Parshva's four vows had no explicit brahmacharya).

• Anekantavada and Syadvada hold that reality has many aspects and no single statement captures it; the doctrine teaches tolerance of other viewpoints.

• Four forms of existence (gatis): Deva (gods), Manushya (humans), Tiryancha (animals and plants) and Naraka (hell-beings). In the 2026 PYQ, 'Yaksha (demi-gods)' was the odd one out.

• Sects. Digambara (sky-clad) and Svetambara (white-clad), with later sub-sects such as the Sthanakvasi among the Svetambaras. Councils at Pataliputra and Valabhi fixed the canon.

Vedanta Acharyas, Bhakti Traditions and Medieval Religion

• Ramanuja (2022 PYQ). Among the options, only 'the best means of salvation was devotion' reflects Ramanuja; 'Vedas are eternal and self-existent' is the Mimamsa view, 'logic' is the Nyaya approach, and 'meditation' is Yoga's. Shankara stressed knowledge, not devotion.

• The Alvars and Nayanars. The 12 Alvars (Vaishnava; Andal the woman poet) and the 63 Nayanars (Shaiva) began the Tamil bhakti movement in the 6th–9th centuries; Nathamuni compiled the Alvars' hymns (Nalayira Divya Prabandham) and counts as a Vaishnava scholar (the 2022 PYQ).

• Other traditions. Pancharatra and Bhagavata (Vaishnava), Pashupata and Kashmir Shaivism (Trika), Shaiva Siddhanta, Shakta Tantra, and Virashaivism or Lingayatism (Basavanna in the 12th century; they reject caste hierarchy and the ritual authority of Brahmins, and see Shiva as one; the 2016 PYQ on Siddhas and Lingayats shows how detail-heavy this can get).

• Accuracy check on dates. Dates for Shankara, Nimbarka and many others vary between sources; UPSC usually asks about the school and teaching rather than the exact year. Contemporaries of Akbar include Tulsidas and Surdas, but not Nimbarka (the 2019 PYQ), while Kabir lived long before Sirhindi.

Buddha's Core Teaching and a Buddhism–Jainism Comparison

• Four Noble Truths: life involves suffering (dukkha); suffering has a cause (craving, tanha); it can end (nirodha, nirvana); and there is a path to its end. The Eightfold Path (right view, intention, speech, action, livelihood, effort, mindfulness and concentration) groups into three trainings: wisdom (prajna), ethics (sila) and concentration (samadhi).

• Three marks of existence: impermanence (anicca), no-self (anatta) and suffering (dukkha). Dependent origination (pratityasamutpada) explains how each condition arises from another. The Buddha rejected both extreme asceticism and indulgence — the Middle Path — and was silent on metaphysical questions he thought did not lead to liberation.

• Texts. The Tripitaka (Vinaya on monastic rules, Sutta on discourses, Abhidhamma on doctrine) in Pali; the Mahayana added Prajnaparamita, Lotus and Lankavatara sutras in Sanskrit.

The common thread: both arose in the 6th century BCE in the eastern Gangetic plain, both rejected Vedic sacrifice and the authority of the Vedas, both used the people's languages and offered a path outside the varna order, and both stressed non-violence and the monastic order.

Comparing the Great Vedantins

• All three wrote commentaries on the Prasthanatrayi. Their dates (Shankara's in particular) vary in sources, so keep ordering — Shankara before Ramanuja before Madhva — rather than years.

• Why these ideas matter for society. Ramanuja's bhakti and prapatti opened devotion to all castes and shaped the later bhakti movements (see the Bhakti and Sufi article); Shankara's mathas organised a pan-Indian ascetic order; Madhva's Udupi tradition built temple-based devotion. The Lingayat movement went further by rejecting caste hierarchy.

Why Philosophy Matters for the Exam and for Essays

• Culture questions. UPSC rarely asks pure philosophy; it asks about movements and their effects: how Jainism and Buddhism challenged the ritual and caste order, how Vedanta provided the intellectual frame for bhakti, and how Indian thought shaped art (stupas, temples, Jain sculpture) and literature (Upanishads, Pali Jatakas, Gita commentaries).

• Cross-links. Buddhist and Jain art is covered in the architecture and sculpture articles; Bhakti and Sufism in their own article; Ashokan Dhamma in the Mauryan article; the six schools' literature in the literature article.

• Values angle (GS-IV and Essay). Ahimsa, the Middle Path, anekantavada (tolerance of other views), nishkama karma and dharma give an Indian vocabulary for ethics, and frequently appear as quotations or examples in the Ethics paper and the Essay.

• A good Mains structure. (1) one-line context; (2) two or three core doctrines; (3) social impact; (4) an example from art or literature; (5) contemporary relevance. For comparisons, a small table of three or four rows is far better than paragraphs.

How UPSC Has Asked It — And What Could Come Next

• Seen: features of Mahayana (2019), Buddhist sects (2020), terms (2020), a person's teaching (Ramanuja, 2022), centres (2023), Upanishads (2024), Jain concepts and Buddhist iconography (2026).

• Likely next: the Six Darshanas with founders; Vajrayana; Buddhist councils and where they were held; Jain Tirthankaras and symbols; Ajivika; Charvaka as materialism; Shankara's mathas; Vallabha and Chaitanya; Lingayat and Siddha traditions; Buddhist texts (Tripitaka, Abhidhamma); major philosophers (Nagarjuna, Dignaga, Vasubandhu).

• Traps: Hinayana is a pejorative label — 'Theravada' or 'Sthaviravada' is the usual name; Charvaka is not Buddhism; Samkhya is orthodox though non-theistic; Ajivikas are not Jains; Shankara is not Ramanuja; Dvaita, Advaita and Vishishtadvaita are three different systems, so do not jumble them.

Further Reading

• Standard NCERT-level texts and reference books on ancient, medieval and cultural Indian history (any UPSC reading list).

Test Yourself: Practice Questions & PYQs

For each school ask: who, what is real, how is liberation reached?

Practice Questions

Q1. Which school of Indian philosophy holds that the world is made of eternal atoms?

• (a) Vaisheshika

• (b) Yoga

• (c) Samkhya

• (d) Nyaya

Q2. The Samkhya school is traditionally ascribed to:

• (a) Jaimini

• (b) Gautama

• (c) Kapila

• (d) Badarayana

Q3. 'Anekantavada' is a doctrine of:

• (a) Charvaka

• (b) Ajivika

• (c) Buddhism

• (d) Jainism

Q4. Which of the following schools believed in strict determinism (niyati)?

• (a) Mimamsa

• (b) Ajivika

• (c) Charvaka

• (d) Jainism

Q5. Shankara's school of Vedanta is called:

• (a) Shuddhadvaita

• (b) Vishishtadvaita

• (c) Dvaita

• (d) Advaita

Q6. Madhva is associated with which school?

• (a) Vishishtadvaita

• (b) Advaita

• (c) Dvaitadvaita

• (d) Dvaita

Q7. Which one of the following was a council held under Ashoka?

• (a) First Buddhist Council

• (b) Second Buddhist Council

• (c) Fourth Buddhist Council

• (d) Third Buddhist Council

Q8. The Yoga Sutras were composed by:

• (a) Kapila

• (b) Kanada

• (c) Kautilya

• (d) Patanjali

Q9. Which of the following is NOT one of the three jewels (Triratna) of Jainism?

• (a) Right livelihood

• (b) Right faith

• (c) Right conduct

• (d) Right knowledge

Q10. Charvaka philosophy holds that the only valid source of knowledge is:

• (a) Testimony

• (b) Analogy

• (c) Perception

• (d) Inference

UPSC Previous Year Questions (PYQs)

Real UPSC Prelims questions on religious history and philosophy (2016–2026), answers matched to UPSC's official key (2026 provisional). Explanations in our own words.

Q11. (UPSC Prelims 2016) With reference to the religious history of India, consider the following statements: 1. The concept of Bodhisattva is central to the Hinayana sect of Buddhism. 2. Bodhisattva is a compassionate one on his way to enlightenment. 3. Bodhisattva delays achieving his own salvation to help all sentient beings on their path to it. Which of the statements given above is/are correct?

• (a) 1, 2 and 3

• (b) 1 only

• (c) 2 and 3 only

• (d) 2 only

Q12. (UPSC Prelims 2019) Consider the following: 1. Deification of the Buddha 2. Treading the path of Bodhisattvas 3. Image worship and rituals Which of the above is/are the feature/features of Mahayana Buddhism?

• (a) 1 only

• (b) 1 and 2 only

• (c) 2 and 3 only

• (d) 1, 2 and 3

Q13. (UPSC Prelims 2020) With reference to the religious history of India, consider the following statements: 1. Sthaviravadins belong to Mahayana Buddhism. 2. Lokottaravadin sect was an offshoot of Mahasanghika sect of Buddhism. 3. The deification of Buddha by Mahasanghikas fostered the Mahayana Buddhism. Which of the statements given above is/are correct?

• (a) 2 and 3 only

• (b) 1 and 2 only

• (c) 1, 2 and 3

• (d) 3 only

Q14. (UPSC Prelims 2020) With reference to the cultural history of India, consider the following pairs: 1. Parivrajaka : Renunciant and Wanderer 2. Shramana : Priest with a high status 3. Upasaka : Lay follower of Buddhism Which of the pairs given above are correctly matched?

• (a) 1 and 3 only

• (b) 1, 2 and 3

• (c) 1 and 2 only

• (d) 2 and 3 only

Q15. (UPSC Prelims 2022) The world's second tallest statue in sitting pose of Ramanuja was inaugurated by the Prime Minister of India at Hyderabad recently. Which one of the following statements correctly represents the teachings of Ramanuja?

• (a) Logical arguments were essential means for the highest bliss.

• (b) Salvation was to be obtained through meditation.

• (c) Vedas are eternal, self-existent and wholly authoritative.

• (d) The best means of salvation was devotion.

Q16. (UPSC Prelims 2022) With reference to Indian history, consider the following pairs: Historical person : Known as 1. Aryadeva : Jaina scholar 2. Dignaga : Buddhist scholar 3. Nathamuni : Vaishnava scholar How many pairs given above are correctly matched?

• (a) None of the pairs

• (b) Only one pair

• (c) All three pairs

• (d) Only two pairs

Q17. (UPSC Prelims 2023) In which one of the following regions was Dhanyakataka, which flourished as a prominent Buddhist centre under the Mahasanghikas, located?

• (a) Magadha

• (b) Andhra

• (c) Kalinga

• (d) Gandhara

Q18. (UPSC Prelims 2024) Consider the following statements: 1. There are no parables in Upanishads. 2. Upanishads were composed earlier than the Puranas. Which of the statements given above is/are correct?

• (a) 1 only

• (b) Both 1 and 2

• (c) Neither 1 nor 2

• (d) 2 only

Q19. (UPSC Prelims 2019) Consider the following statements: 1. Saint Nimbarka was a contemporary of Akbar. 2. Saint Kabir was greatly influenced by Shaikh Ahmad Sirhindi. Which of the statements given above is/are correct?

• (a) 2 only

• (b) Neither 1 nor 2

• (c) 1 only

• (d) Both 1 and 2

Q20. (UPSC Prelims 2016) With reference to the cultural history of medieval India, consider the following statements: 1. Siddhas (Sittars) of Tamil region were monotheistic and condemned idolatry. 2. Lingayats of Kannada region questioned the theory of rebirth and rejected the caste hierarchy. Which of the statements given above is/are correct?

• (a) Neither 1 nor 2

• (b) Both 1 and 2

• (c) 2 only

• (d) 1 only

Q21. (UPSC Prelims 2018) With reference to the religious practices in India, the "Sthanakvasi" sect belongs to

• (a) Jainism

• (b) Vaishnavism

• (c) Shaivism

• (d) Buddhism

Q22. (UPSC Prelims 2018) With reference to Indian history, who among the following is a future Buddha, yet to come to save the world?

• (a) Padmapani

• (b) Maitreya

• (c) Lokesvara

• (d) Avalokiteshvara

Q23. (UPSC Prelims 2020) With reference to the cultural history of India, which one of the following is the correct description of the term 'paramitas'?

• (a) Powerful merchant guilds of early medieval South India

• (b) Perfections whose attainment led to the Bodhisattva path

• (c) Philosophical schools that did not accept the authority of Vedas

• (d) The earliest Dharmashastra texts written in aphoristic (sutra) style

Q24. (UPSC Prelims 2023) "Souls are not only the property of animal and plant life, but also of rocks, running water and many other natural objects not looked on as living by others." The above statement reflects one of the core beliefs of which one of the following religious sects of ancient India?

• (a) Buddhism

• (b) Shaivism

• (c) Jainism

• (d) Vaishnavism

Q25. (UPSC Prelims 2024) With reference to ancient India, Gautama Buddha was generally known by which of the following epithets? 1. Nayaputta 2. Shakyamuni 3. Tathagata Select the correct answer using the code given below:

• (a) 1, 2 and 3

• (b) 1 only

• (c) None of the above are epithets of Gautama Buddha

• (d) 2 and 3 only

Q26. (UPSC Prelims 2026, provisional key) Among the four main forms of existence of life recognized in Jainism, which one of the following is not included?

• (a) Tiryancha (animals and plants)

• (b) Manushya (humans)

• (c) Deva (gods)

• (d) Yaksha (demi-gods)

Q27. (UPSC Prelims 2026, provisional key) What does an empty seat represent in early Buddhist iconography?

• (a) The Buddha's Mahabhinishkramana

• (b) The meditation of the Buddha

• (c) The Buddha's Mahaparinibbana

• (d) The Buddha's First Sermon

Mains Practice Questions

Use these to frame full-length answers. You don't have to answer one exactly — they show the angles UPSC tests, so let them guide which points you cover.

• Distinguish between the orthodox and heterodox schools of Indian philosophy, with examples.

• Compare the teachings of Shankara and Ramanuja.

• Examine the philosophical basis of Jainism and Buddhism and the reasons for their popularity.

• Explain Anekantavada and its relevance today.

• How did Upanishadic thought differ from the Vedic ritual tradition?

Mains PYQs — Last 10 Years (UPSC GS-I)

The exact questions UPSC has actually asked on this topic over the last decade. Practise writing full-length answers to these.

• Indian philosophy and tradition played a significant role in conceiving and shaping the monuments and their art in India. Discuss. (UPSC GS-I, 2020; 15 marks, 250 words)

• Evaluate the nature of Bhakti literature and its contribution to Indian culture. (UPSC GS-I, 2021; related)

• The Bhakti movement received a remarkable re-orientation with the advent of Sri Chaitanya Mahaprabhu. Discuss. (UPSC GS-I, 2018; related)