Garga Horàis a very ancient treatise on the predictive part of Hindu astrology. Its author, á¹Âá¹£i Garga, is one of the sages of the PurÃÂá¹Âika times. He was the son of á¹Âá¹£i BharadvÃÂja. There are 8 SiddhÃÂntas of Hindu astrology, they are â BrahmÃÂ, Sà «rya, Soma, Vasiá¹£á¹Âhta, Pulastya, Romaka, Arya, and Garga SiddhÃÂntas â the last named is named after the author of Garga HorÃÂ, and Garga Saá¹ÂhitÃÂ, and with whom Jyotiá¹£a is associated. Garga Horàis written in the Sanskrit Sutra â format and from this work VarÃÂhamihira has drawn profusely. Incidentally, both, Garga and VarÃÂhamihira, have in their respective works referred to the proficiencies of the Greeks in the field of Astronomy.
ParÃÂà Âara is considered to be most ancient of Hindu astronomers, and second in order of time is Garga, whom Gauranga Nath Bannerjee, while agreeing with Dr.Kern, places in the 1st Century B.C. Bala Bhadra, the author of HoràRatnaá¹Â, and whose method is considered to be more authoritative in South India was greatly influenced by Garga.