Siddhanta or Ganita Skanda (Astronomy): Astronomy & its application to astrology.
Samhita Skanda (Mundane astrology): Covers Mundane astrology, predicting important events related to countries such as war, earth quakes, economic cycles, political events, astro - meteorology, financial positions, electional astrology; house & construction related matters (Vaastu Shaastra), animals, portents & omens etc.
Hora Skandha : Predictive astrology, which is interpretation of horoscopes:
This branch has the following different sub sets or branches:-
Swar Shaastra (Phonetical astrology): Predictions based on name & sounds.
Prashna (Horary astrology): Predictions based on time when a question is asked by querent / querist. Almost all questions are answerable from a horoscope calculated at the time of the question. A few famous classical works in this genre are Varahamihira’s Daivajna Vallabha, the Shatpanchasika of Prithyshas (Varahamihira’s son), Prashna Marga which is a complex work authored by an unknown jyotishi and Neeelakantha’s Prashna Tantra.
Ankjyotisha / Kabala (Numerology): A branch of astrology based on numbers.
Nastjaatakam (Lost Horoscopy): Art of tracing / construction of lost horoscopes.
StreeJaatak (female astrology): A special branch of astrology dealing with female nativities.
In our next post let's look at the styles of Jyotish.