ABSTRACT
The theory of skepticism in Indian philosophy is called (Mohanta, 1998). Jayarāṣi and Nāgārjuna think that doubt does not exist as it is a mental phenomenon. The Naiyāyikas has enumerated ‘doubt’ or ‘samśaya’ as one the form of apramā (improper cognition), the definition of which is given as cognition characterized by the contrary properties of positivity and negativity belonging to a single object. Philosophical arguments can alone be applied to the object in doubt, but not to an object which is purely known or unknown. Such doubt is permissible so long as there does not arise any self-contradiction.
