The Navya-nyaya, which has heralded a New era in the system of Nyaya in India, has brought a revolutionary change in the outlook of the Nyaya Philosophy. It has systematized all the doctrines of Nyaya and Vaisesika under single head of ‘means of knowledge’ (Pramana). The Thought Jewel of Reality (Tattva Cintamani), Which is the most fundamentals work of the Navya-nyaya, is composed by Gangesopadhyaya of Mithila and it deals with all the important doctrines of the Nyaya-Vaisesika, i.e. Philosophy, logic, epistemology, and linguistics, under the four books, viz.