Synopsis The book has been presented into three major sections viz. Introduction covering agroclimatic conditions, Ethnicity religion and culture, Ancient knowledge-Kaligyan and methodology, Database of medicinal plants including the parts used in treatment of the ailments alongwith references and appraisal of the database providing prioritization of the plants of both ancient and contemporary knowledge bases that can be used for drug discovery purposes. Selected images of tribes, medicinal plants commonly used and found in wild and plant ingredients mentioned in "Kaligyan" have been provided as different photo-galleries. The publication is expected to be a ready reckoner for students, teachers, practitioners of indigenous Indian systems of medicines, herbal drug industry, academicians as well as administrators of healthcare systems. The researchers and historians working in various disciplines can benefit from the materials provided in this book.