flowchart TB
P[Six Pramanas] --> P1[Pratyaksha<br/>Perception]
P --> P2[Anumana<br/>Inference]
P --> P3[Upamana<br/>Comparison]
P --> P4[Shabda<br/>Testimony]
P --> P5[Arthapatti<br/>Postulation]
P --> P6[Anupalabdhi<br/>Non-perception]
classDef default fill:#003366,color:#ffffff,stroke:#ffcc00,stroke-width:3px,rx:10px,ry:10px;
26 Pramanas: Sources of Valid Knowledge
The Indian tradition recognises six pramanas — six valid means by which knowledge of an object is acquired. The full list of six is accepted by Bhatta Mimamsa and Advaita Vedanta.
TipThe Six Pramanas
- Pratyaksha — Perception
- Anumana — Inference
- Upamana — Comparison / Analogy
- Shabda — Verbal Testimony
- Arthapatti — Postulation / Presumption
- Anupalabdhi — Non-perception / Non-apprehension
26.1 1. Pratyaksha — Perception
Pratyaksha is direct cognition of an object through the contact of a sense organ with the object. It is accepted by every school as the most basic pramana.
TipConditions for Valid Perception (Nyaya)
| Condition | Description |
|---|---|
| Indriya–artha sannikarsha | Contact between sense organ and object |
| Avyabhichari | Non-erroneous (not a mistaken cognition) |
| Vyavasayatmaka | Definite, not doubtful |
| Avyapadeshya | Non-verbal (independent of words) |
TipTwo Stages of Perception
- Nirvikalpa pratyaksha — indeterminate perception; bare awareness without categorisation. “Something exists.”
- Savikalpa pratyaksha — determinate perception; the object is recognised under a category. “This is a tree.”
26.1.1 Types of Perception
TipThree Types of Perception
| Type | Description | Example |
|---|---|---|
| Laukika (ordinary) | Through usual sense contact | Seeing a tree |
| Alaukika (extraordinary) | Sense contact via an unusual medium | Recognising “treeness” in a single tree |
| Manas (internal) | Through the inner sense (mind) | Awareness of one’s own pleasure or pain |
26.2 2. Anumana — Inference
Anumana is cognition that follows another cognition. Knowing fire on a hill from seeing smoke is the classic example. The structure of anumana is the subject of the next topic; here, only its place among pramanas is summarised.
Inference always presupposes perception — perception of the hetu (mark) and previous perception of the vyapti (universal relation between mark and the inferred object).
26.3 3. Upamana — Comparison
Upamana is the cognition of similarity between two objects, leading to recognition of an unknown object based on its resemblance to a known one.
TipClassic example of Upamana
A man who has not seen a gavaya (a wild ox) is told by a forester: “A gavaya is similar to a cow.” When the man encounters such an animal in the forest, he recognises it as a gavaya. The cognition “this is a gavaya” is by upamana — comparison.
Upamana is accepted by Nyaya and Mimamsa as a separate pramana. Vaisheshika and Buddhism subsume it under inference.
26.4 4. Shabda — Verbal Testimony
Shabda is valid knowledge derived from the words of a reliable person (apta-vakya — the statement of one who knows truly and speaks truly). It includes both ordinary testimony (a competent witness, a teacher) and scriptural testimony (the Vedas).
TipTwo Types of Shabda
| Type | Description |
|---|---|
| Vaidika | Words of the Veda; treated as eternal and authoritative |
| Laukika | Words of any reliable human speaker |
TipFour Conditions for Valid Verbal Knowledge
- Akanksha — expectancy (each word leaves the listener expecting the rest of the sentence).
- Yogyata — fitness (the words combine to make sense; “watered with fire” fails this).
- Sannidhi — proximity (words follow one another without long delay).
- Tatparya — speaker’s intention (the meaning the speaker wishes to convey).
26.5 5. Arthapatti — Postulation / Presumption
Arthapatti is the cognition of an unknown fact required to make sense of a known fact — a postulation forced upon us by an apparent inconsistency.
TipClassic example of Arthapatti
- Known fact 1: Devadatta is fat.
- Known fact 2: Devadatta does not eat during the day.
- The two facts are inconsistent without a further hypothesis.
- Postulated: Therefore, Devadatta must eat at night.
The conclusion is reached by presumption, not by inference (no formal vyapti); not by perception (it is not seen).
Arthapatti is accepted by Mimamsa and Advaita Vedanta. Nyaya subsumes it under inference.
26.6 6. Anupalabdhi — Non-perception / Non-apprehension
Anupalabdhi is the valid cognition of the absence (abhava) of an object through its non-perception in a place where it would be perceived if present.
TipClassic example of Anupalabdhi
“There is no jar on the floor.”
We know this not by perception (we cannot perceive an absence in the same way we perceive presence) but by anupalabdhi — the absence of perception of a jar in conditions where, were a jar present, it would be perceived. The cognition of absence is itself a kind of valid knowledge.
Anupalabdhi is accepted by Bhatta Mimamsa and Advaita Vedanta as the sixth pramana. Nyaya treats absence (abhava) as known by perception.
26.7 Summary — Six Pramanas
TipSix Pramanas at a Glance
| Pramana | Means | Worked example |
|---|---|---|
| Pratyaksha | Sense contact | Seeing a tree |
| Anumana | Inference (smoke → fire) | Inferring fire on a distant hill |
| Upamana | Comparison | Recognising a gavaya from a cow |
| Shabda | Reliable testimony | “Capital of France is Paris” — accepted from a credible teacher |
| Arthapatti | Postulation forced by inconsistency | Devadatta is fat though he doesn’t eat by day → he eats at night |
| Anupalabdhi | Non-perception | “There is no jar on the floor” |
26.8 Practice Questions
Q 01
Pratyaksha
Easy
In Indian logic, the pramana that arises through the direct contact of a sense organ with its object is:
View solution
Correct Option: A
Pratyaksha = direct perception through sense-organ contact with the object.
Q 02
Stages of Perception
Medium
"Bare awareness without categorisation" — this is the description of:
View solution
Correct Option: B
Nirvikalpa pratyaksha = indeterminate perception, prior to categorisation. Savikalpa is determinate (object recognised under a category).
Q 03
Upamana
Medium
A man told that "a gavaya is like a cow" later sees an animal in the forest and recognises it as a gavaya. The pramana operating here is:
View solution
Correct Option: C
Upamana (comparison) — the classic Nyaya example of recognising the unknown from similarity to a known.
Q 04
Shabda Conditions
Hard
Which of the following is not one of the four conditions for valid verbal knowledge in Indian logic?
View solution
Correct Option: D
The four conditions are Akanksha, Yogyata, Sannidhi, and Tatparya (speaker's intention). Smriti (memory) is excluded.
Q 05
Arthapatti
Hard
"Devadatta is fat but does not eat by day; therefore, he eats at night." This is a classic example of:
View solution
Correct Option: C
Arthapatti — postulation of an unknown fact (eats at night) needed to reconcile two known facts. The classic Mimamsa example.
Q 06
Anupalabdhi
Medium
"There is no jar on the floor." The pramana through which this absence is known is:
View solution
Correct Option: C
Knowledge of absence (abhava) is acquired through anupalabdhi — non-perception in conditions where the object would be perceived if present.
Q 07
Pramana-Example Match
Hard
Match the pramana with its example:
| (i) | Pratyaksha | (a) | Inferring fire from smoke on a hill |
| (ii) | Anumana | (b) | Recognising a gavaya from its similarity to a cow |
| (iii) | Upamana | (c) | Seeing a tree |
| (iv) | Shabda | (d) | "Paris is the capital of France" — accepted from a teacher |
View solution
Correct Option: A
Pratyaksha → tree (perception); Anumana → fire from smoke (inference); Upamana → gavaya (comparison); Shabda → testimony from teacher.
Q 08
Tatparya
Medium
In Indian theory of language, tatparya refers to:
View solution
Correct Option: B
Tatparya = the speaker's intended meaning — one of the four conditions of valid verbal cognition.
ImportantQuick recall
- Six pramanas: Pratyaksha · Anumana · Upamana · Shabda · Arthapatti · Anupalabdhi.
- Pratyaksha: Nirvikalpa (indeterminate) → Savikalpa (determinate).
- Shabda’s four conditions: Akanksha (expectancy), Yogyata (fitness), Sannidhi (proximity), Tatparya (intention).
- Upamana = comparison (gavaya–cow); Arthapatti = postulation (Devadatta); Anupalabdhi = non-perception (no jar).
- Number accepted by school: Charvaka 1 · Vaisheshika/Buddhism 2 · Sankhya/Yoga 3 · Nyaya 4 · Prabhakara Mimamsa 5 · Bhatta Mimamsa & Advaita Vedanta 6.