This book attempts to introduce the student to some advanced principles of Astrology such as Badhaka, Kendradhipathi, Gulika and Mandi, Dustanas, Prasna and Muhurtha etc., which are factors that help in fine-tuning predictions. These concepts are well known but little understood and tend to lead to confusion in interpreting a chart. The book deals with these advances principles in a simple manner highlighting their scope as well as limitations in understanding a horoscope. No Such attempt has been made so far. The discussion is in graded steps with profuse illustrations of case studies by the author and helps in clearing many ambiguities and misconceptions covering these principles in their application to actual cases.