Nadi Jodiam or Nadi Jothiysh is the oldest form of astrology that originated in Southern India, credited to the sages known as Sidhargal. It offers profound insights into an individual’s past, present, and future. This ancient knowledge has been meticulously preserved on olaichuvadi, palm leaves, for over 6,000 years. Nadi astrology, practiced primarily in Southern Tamil Nadu, is written in concise and poetic Old Tamil verses.