The proposed book presents an overview of select theories in the classical Vaiśeṣika system of Indian philosophy, such as the concept of categories, creation and existence, atomic theory, consciousness and cognition. It also expounds in detail the concept of dharma, the idea of the highest good and expert testimony as a valid means of knowing in Vaiśeṣika thought. Some of the major themes discussed are the religious inclination of Vaiśeṣika thought towards Pasupata Saivism, the affiliation of the Vaiśeṣika System to the basic foundations of Indian philosophical thought, namely Veda and Yoga, and their insights into science, hermeneutics and metaphysics. In addition, this book includes recent Sanskrit commentaries on key Vaiśeṣika texts and provides a glimpse of Vaiśeṣika studies across the world. Overall, this book enunciates the Vaiśeṣika view from original sources and is an important work for Vaiśeṣika studies in current times for serious students as well as researchers. .