According to Nyaya philosphy, inference is one of the sources of valid knowledge. An inference is constituted with at least three sentences and these three sentences are again constituted of three different terms. These three sentences are named as; major premise, minor premise, and conclusion respectively. Major, minor, and middle terms are used interchangeably as ‘sadhya’, ‘paksa’ and ‘hetu’ in Nyâya Philosophy. In Aristotelian logic, paksa is same as ‘minor term’. Paksa is to be perceived, but not inferred. The paksa is the subject where we establish something. This something is not considered directly but indirectly. The consideration is depending on inference.