This paper intends to present a cognitive model of anuvyavasāya through causal and logical analysis of the moment examinations (kṣaṇavicāra), remaining consistent with the fundamental presuppositions of the Nyāya system. The Naiyāyikas hold that no cognition is self-revealing in nature. A subsequent mental perception, introspection or after-perception (anuvyavasāya) reveals the determinate cognition. In anuvyavasāya, along with the cognition and Self, the object of determinate cognition (vyavasāya) also is known. The vyavasāya itself, working as cognition-induced extraordinary sensory connection (jñānalakṣaṇa alaukika sannikarṣa), (...) connects its object to the mental sense-organ. We can formulate the moment examination of the after-perception ‘I know that it is a pitcher’ in the following way: (M1) sense-pitcher connection, (M2) indeterminate perception of pitcher, (M3) determinate perception of pitcher, (M4) indeterminate perception of the vyavasāya, (M5) determinate mental perception of vyavasāya, i.e. anuvyavasāya. But, according to the Naiyāyikas cognition exists only for two moments. So at M5, the vyavasāya is destroyed, which is the object or cause of anuvyavasāya. Gaṅgeśopādhyāya replies that a cause is only required to exist at the immediately previous moment of the effect. The paper analyses the moment examinations of anuvyavasāya offered by Udayanācārya and Vardhamānopādhyāya and tries to arrive at a consistent model of anuvyavasāya. The paper also discusses whether at all anuvyavasāya is an instance of jñānalakṣaṇa. Udayana’s account suggests that it is so, but Gadādhara does not admit it. On the other hand, Harirāma Tarkavāgīśa and Raghunātha Śiromaṇi hold that like vyavasāya all the internal states having contents (saviṣayaka) may work as jñānalakṣaṇa sannikarṣa. (shrink)