Nadi Astrology is an ancient Indian method of Astrology to learn about ones past, present and the future. Can you believe that someone in India is storing records of your entire life cycle ie. your past, present and future, hard to believe but Yes, this is called Nadi. According to the principles of Nadi Astrology the Zodiac is divided into 12 equal sub divisions of Signs with equal subdivisions of the 27 Nakshatras. Each Nadi is a collection of the inscriptions of a particular Rishi concerned , written in Vatta Ezhuthu , a Tamil script, with a sharp, nail-like instrument called Ezhuthani.