Original in content and approach, Philosophy in Classical India focuses on the rational principles of Indian philosophical theory, rather than the mysticism usually associated with it. Ganeri explores the philosophical projects of a number of major Indian philosophers and looks into the methods of rational inquiry deployed within these projects. In so doing, he illuminates a network of mutual reference and criticism, influence and response, in which reason is simultaneously used constructively and to call itself into question.

In this book, Mohanty develops a new interpretation of the nature of Indian philsophical thinking. Using the original Sanskrit sources, he examines the concepts of consciousness and subjectivity, theories of language and logic, and meaning and truth, and explicates the concept of theoretical rationality which underlies the Indian philosophies. Mohanty brings to bear insights from modern western analytical and phenomenological philosophies, not so much for comparative purposes, but rather to interpret Indian thinking and to highlight its distinctive features.