Nadi is a traditional form of astrology practiced in India, particularly in the state of Tamil Nadu. It is based on the belief that the life details of individuals are recorded on palm leaves, known as Nadi leaves, by ancient sages. These leaves contain predictions about a person's past, present, and future, which can be accessed through a process involving a Nadi astrologer.
The process typically begins with the individual providing their thumbprint, which helps the astrologer locate the corresponding leaf. Once found, the astrologer interprets the information written on the leaf, offering insights into various aspects of life, including health, relationships, and career. This unique practice is considered a spiritual and cultural heritage in Indian astrology.