This well-established science is supported by ancient texts such as the Brihatsamhita, Jathaka, and Paarijatha. The Nadi inscriptions were composed in an ancient Tamil script known as Vatta Eluzhuthu and archived in palm leaf manuscripts. Various Rishis documented different types of Nadi, among which include Siva Nadi—presented as a dialogue between the Supreme Lord and his consort Parvati. Additionally, Saint Kakabusanda composed verses regarding human destinies, leading to the creation of Kakabusanda Nadi. Other Nadi readings include Ganesh Nadi, Brahma Nadi, Muruga Nadi, Tantra Nadi, Shakti Nadi, Atri Nadi, Nandi Nadi, Dhruva Nadi, Jeeva Nadi, and Suka Nadi.

These palm leaves are preserved with care, often treated with peacock oil during auspicious times. It is believed that each leaf is written specifically for the destined soul who seeks it at the right moment. Nadi Astrology is grounded in scientific principles, guaranteeing precise outcomes. A crucial aspect of this practice involves casting the Nirayana Bhava Chalit chart alongside the Lagna (ascendant) chart, which illustrates the planetary positions from a specific longitude and latitude, or the individual’s birthplace. This method is recognized for yielding remarkably accurate predictive insights that stand unmatched globally. The science of astrology reveals that the same rules applicable to one individual also extend to others, similar to scientific laws that govern the natural world. Hence, when engaging with Nadi Astrology, individuals can trust the predictions provided.

Saint Agasthiyar, a figure revered across various demographics, transcends religious boundaries. Known both to the learned and the simple, Saint Agasthiyar was born from an ascetic's pitcher and played a pivotal role in balancing the cosmos. He famously journeyed southward to attend the marriage of Lord Shiva at Kailash and witnessed the ceremony atop Potiya Hill. Furthermore, his contributions included bringing the River Cauvery to South India, reinforcing his reputation as a proficient sage in science and astrology.

Historical Significance of Nadi Astrology: Nadi astrology's roots extend at least 5,000 years into the past. This ancient discipline, practiced by India's Sages, possesses a rich history wherein the Saptarishis recorded the destinies of humankind—past, present, and future—on palm leaves using their yogic powers. These writings, inscribed in an ancient Tamil script, can now be deciphered solely by skilled Nadi astrologers.

Meaning of Nadi Astrology: The term "NADI" in Tamil translates to "in search of." This name reflects the quest individuals undertake to uncover their personal predictions through this profound astrological system. The palm leaf inscriptions—collectively referred to as Nadi—can be found scattered throughout India, waiting to be read by those destined to discover their insights.