The Great saints of ancient India aided by their spiritual powers and foresight of time and space have discovered many sciences like Medicine and Astrology for the benefit of mankind.

Naadi Shastra is one such unique science based on the books of the Great saints like Agasthya, Vashista, Kausika, etc. Agasthya Naadi the book of the Great Saint Agasthya is a well organized writing contained in several thousand volumes, each containing around a hundred predictions.

This book, being the repository of wisdom of the Great Saint was one of the well preserved books for thousands of years by the many generations of rulers, until an auction during the British rule, when it finally became the proud possession of an influential family of valluvar community at Vaitheeswaran koil in the Tanjore district of Tamilnadu.