Jyotihshastra: Astral and Mathematical Literature c4.s5.12

c4.s5.12

The planetary vākyas are given in an anonymous text entitled Vākyakaraṇa,²⁴² in which the epoch of the lunar vākyas is 22 May 1282; the text seems to have been composed in about 1300, probably near Kāñcī. There is a commentary composed by Sundararāja, who was a native of Viprasadgrāma (Aṇḍaṇa-nal-lur near Trichinopoly), in the late fifteenth or early sixteenth century; Sundararāja studied under Padmagarbha during the reign of (Gopendra) Tipparāja,²⁴³ who ruled Koṇḍavīḍu in the Guntur District for the Vijayanagara king, Kṛṣṇadeva Rāya, from about 1515 till 1520, and he corresponded with the well-known astronomer, Gārgyakerala Nīlakaṇṭha Somayājin, whom we shall presently discuss in more detail.