The aim of this series is to present the contents of different streams of Indian Philosophical texts to make more and more people aware about Indian philosophical thought. This multi-volume work presents Indian thought, citing experts on the points that seem debatable. So far, nine volumes have been brought out. Vol. I provides a list of sources which are surveyed in the subsequent volumes, as well as provides a guide to secondary literature for further study of Indian Philosophy. Vol. II provides a detailed resume of current knowledge about the classical Indian philosophical system of Nyaya-Vaisesika in its earlier stages. Vol. III summarises early Advaita Vedanta upto Sankar's pupils. Vol. IV Discusses the history of the system and its philosophical contours overall. Other Vols. Are on Philosophy of the Grammarians, Nyaya Vaisesika, Abhidharma and Buddhist Philosophy from 100 to 350 A.D. This present Vol. IX attempts to cover the development of Buddhist philosophical notions from approximately the time of Vasubandhu and his acrimonious critic Samghabhadra  that is from about the mid-fourth century, to the end of the sixth century A.D. It is a glorious period in Indian history generally, the time of the Gupta kings and relative peace throughout the subcontinent.