A History of the Kerala School of Hindu Astronomy (in Perspective) c10.s5.13

c10.s5.13

*Aṅkaṇaśāstra*,² called also *Grahasamaya* and *Navagrahasamaya*, has, obviously, been composed by a devotee of god Śiva enshrined at Vaikkom (Skt. Puṇḍarīkapura) in Central Kerala and attributed to sage Vyāghrapāda, the establisher of that place. It is an interesting treatise in analytical astrology, intended as a supplement and corrector to general horoscopic astrology and contains 389 verses, divided into four chapters. Herein, each of the twelve *lagna-rāśis* (ascending zodiacal segments) are divided into nine *aṅkaṇa-s* ('court-yards'), each *aṅkaṇa* being presided over by a planet having individual characteristics. Minute prognostications are made on the basis of the effects of these planets.³