Viruddha hetvabhasa type – UGC NET Question

Viruddha hetu is one whose presence implies the negation of the sadhya rather than its affirmation. Instead of supporting the intended conclusion, it logically entails the contrary. Using such a reason undermines the very claim one seeks to establish. Therefore the fallacy described in the stem is viruddha hetvabhasa.

Option A:
Option A is correct because viruddha means “opposed” and aptly labels a reason opposed to the conclusion it is supposed to prove. It highlights a deep inconsistency in the argument.

Option B:
Option B, savyabhicara, denotes a reason that is irregularly related to the sadhya and does not consistently support it, which is different from actively proving the opposite.

Option C:
Option C, asiddha, targets cases where the reason is not established in the paksha and may be non-existent or doubtful there.

Option D:
Option D, satpratipaksha, concerns reasons that are counterbalanced by equally strong reasons for the opposite conclusion, not a single reason that itself implies the contrary.