The argument that the fat saint must be eating secretly at night, although he does not eat during the day and claims not to eat at all, is based on which of the following means of knowledge as per Classical Indian Logic?

Correct option is C

The argument is based on Postulation (Arthāpatti), which is a means of knowledge in Classical Indian Logic where something is inferred to resolve a contradiction or fill a gap in knowledge. In this case, the contradiction is that the saint is gaining weight despite not eating during the day, so it is postulated that he must be eating secretly at night.
Information Booster: 1. Arthāpatti (Postulation): Involves positing a situation or fact to resolve contradictions in observed facts.
2. Upamāna (Comparison): Knowledge obtained through comparison or analogy.
3. Anupalabdhi (Non-Cognition): Knowledge derived from the non-existence of something.
4. Śabda (Verbal Testimony): Knowledge derived from reliable verbal testimony, such as sacred texts.
5. Arthāpatti is used when direct observation is insufficient, and logical inference is needed to resolve the issue.
6. This method is commonly used in situations where apparent contradictions need to be explained by positing unobserved facts.