The aim of Hindu Philosophy is the extinction of sorrow and suffering by the method of knowledge that alone can free man from the bondage of ignorance. It points to a clear way of thinking which enables one to understand Reality by direct experience. In this perspective, Hindu Philosophy is an art of life and not a theory. In this book the author presents a precise and illuminating study of six systems of Indian Philosophy classified into three divisions (1) Nyaya-Vaisesika, (2) Samkhya-Yoga, (3) Mimamsa-Vedanta. The first division lays down the methodology of science and elaborates the concepts of Physics and Chemistry to show how manifestations of phenomena come into being. The second division sets forth and account of cosmic evolution on purely logical principles. The third division critically analyses the basic principles, developing them in greater detail and furnishing arguments to substantiate, as well as making incidental contribution on points of special interest. Beside presenting an account of philosophical systems of India, the author adds a study of Kashmir Saivism--a system of Ideal Monism founded by Vasugupta and based on Siva Sutras. In this context the author throws sufficient light on the traditional Tantric literature that has suffered wide criticism both from Western and Eastern scholars. The book is documented with Preface, Introduction and Glossarial Index.