Jyotish Devata
As a subject, Jyotiṣa has several major branches, including:
Lakṣaṇa Śāstra – the study of bodily features, signs, and omens in the surroundings. This includes palmistry (hasta-rekhā śāstra), which is associated with Subrahmaṇya or Kārtikeya.
Hora Śāstra – the domain of Gaṇeśa.
Gaṇita Śāstra – mathematics, including Vedic numerology, is another major branch.
All these come under the three divisions: Gaṇita, Hora, and Saṁhitā.
Once, a debate (śāstrārtha) took place between Kārtikeya and Gaṇeśa, with Lord Śiva as the judge. Kārtikeya composed the entire Lakṣaṇa Śāstra, while Gaṇeśa composed Hora Śāstra.



