The precise epistemological instruments or methods through which accurate, uncorrupted knowledge about reality is acquired.
- Pratyaksha (Direct Sense Perception)
- Anumana (Logical Inference)
- Upamana (Analogy / Comparison)
- Shabda (Verbal Testimony of a Reliable Expert)
Modern example
Using peer-reviewed experimental data (Pratyaksha), statistical modeling (Anumana), comparative benchmarking (Upamana), and domain-expert literature (Shabda) to validate a scientific discovery.