This book presents a comprehensive exposition of Vedanta Desika's Satadusani, a polemical classic of Visistadvaita Vedanta, devoted to the criticism of the doctrines of Advaita Vedanta. The thought-provoking arguments found in the Sixty-six Vedas of the original text are brought together, analysed and discussed in a systematic manner under eight broad headings: Pramanas Perception; Consciousness; Individual self; Brahman; Universe; Avidya; Sadhana and Mukti. In presenting the dialectics of Vedanta Desika in a vigorous and scholastic form the author deals with numerous issues that the Vadas raise--epistemological, ontological, religious, and ethical. Though the issues are many, each discussing a specific problem, they are ultimately directed to refute the central doctrine of Advaita, viz., that Brahman which is pure consciousness devoid of all determinations, constitutes the sole Reality and everything else is illusory. While carefully tracing the fundamental differences between the two systems of Vedanta, he points out that the differences are mostly due to the difference in the standpoints they adopt. Faithfully conforming to the original in letter and spirit, this work will serve as a useful introduction to the study of the Sribhasya of Ramanuja. A distinct contribution to the study of classical Hindu thought, this book should be of interest to students of Philosophy in general and Vedanta in particular.