"Tattvachintamani" is a seminal work in Indian philosophy that delves into the theory of knowledge, or epistemology, from the perspective of the Navya-Nyāya school. This text systematically explores the nature of perception, inference, comparison, and testimony, aiming to establish a rigorous logical framework for understanding truth and reality. The work is highly analytical and uses a new technical language devised by the author to address complex philosophical issues, significantly influencing subsequent Indian philosophical thought and debate.

"Gadādhara's Śaktivāda" is a philosophical treatise that delves into the intricate theories of meaning, epistemology, and logic within the classical Indian Nyāya tradition. The work primarily focuses on the concept of Śakti (potency or power) as the fundamental principle explaining the relationship between words and their meanings. Gadādhara, a prominent scholar, expands upon the Nyāya school's perspective by rigorously analyzing how knowledge is derived from verbal testimony and the conditions under which words convey particular meanings. His analysis not only addresses previous interpretations by earlier philosophers but also introduces novel viewpoints to resolve longstanding debates about linguistic and cognitive processes.