The Rishis of Ancient India Applied their minds and discovered many arts and sciences for the well-being of future generations of mankind.One such science is Astrology. There are several branches in Astrology vizHoroscopy., i.e. casting and reading horoscopes based on the Positionsof planets at the time of birth of a Person and the movements of the Planets across the Zodiac.  For further details https://www.srisivanadi.com/nadi-astrology/