The Nyaya Śāstra, which constitutes one of the six systems of Indian Philosophy, has played a significant role in the development and analysis of philosophy, logic and epistemology in India. The Nyaya Sutra of Gautama, the foremost work in the Nyaya system, has dealt with the analysis of means of valid knowledge (Pramana), object of Knowledge (Prameya) and other principles of Philosophy, logic and epistemology. However, the advent of the Navya-nyaya has brought a revolutionary change in the outlook of the Nyaya philosophy. It has systematized all the Nyaya and Vaiseska concepts and brought them under the four heads, viz. i) perception (pratyakṣa), ii) inference (anumāna) iii), analogy (upamāna) and iv) word (sabda). Further, the Navya-nyaya has developed the most useful methodology of the analysis of arguments, and in the post Navya-nyaya period, all the Shastric texts and the later texts of rhetorics have adopted the Navya nyāya methodology in the analysis and presentation of arguments of principles. Thus, it is imperative that the students and the scholars of philosophy must become acquinted with the Navya-nyaya methodology of arguments to understand the intricacies of the principles of philosophy.