Jyotish also spelled Jyotish and Jyotish in English is the ancient indian system of astronomy and astrology (also known as Indian astrology, Hindu astrology, and of late, Vedic astrology). Jyotisha or Jyotish means the "eye or light of nature". It describes the ability of an astrologer to view the mechanics of people's behavior as well as the projected cycles and outcomes of time and events. It has three branches:

• Siddhanta : Indian Astronomy.
  
  
• Samhita : Mundane Astrology, predicting important events based on analysis of astrological dynamics in a country's horoscope or general transit events such as war, earth quakes, political events, financial positions,electional astrology; house and construction related matters (Vaastu Shaastra), animals, portents, omens etc.
  
  
• Hora : Predictive Astrology based on analysis of natal horoscopes and the moment a query is made.