Nadi Astrology (Nadi Joytish) is a form of Dharma astrology practiced in Tamil Nadu, Kerala and adjacent regions in India. It is based on the belief that the past, present and the future lives of all humans were foreseen by Dharma sages in ancient time. The ancient sages utilised the Tropical Zodiac with Sidereal Nakshatras system unlike the modern day astrologers whom utilises the flawed Sidereal Zodiac system.