Nadi astrology can be traced back to thousands of years ago. There are millions of Nadi leaves for each person, and it is strongly believed that if only your karma permits, you will go in search to get your leaves. Though Nadi astrology had its origin in India, the palm leaves are not only written for Indians, but it is available for any nationals in spite of caste and creed.
The primary centre or the central library of Nadi astrology is in Vaitheeswaran Koil, near Chidambaram, Tamil Nadu, India. Here Lord Siva is the main deity who is believed to taken the role of a Doctor or Vaidhya, alleviating pains of his devotees.