A Vedic-Age Attribution, a Medieval Manuscript Record

The text's own claimed authorship and its manuscript history point in different directions, and this record keeps both in view rather than picking one. Tradition places Parashara among the rishis of the Vedic age, generations before the events the Mahabharata describes, since his son Vyasa is that epic's traditional compiler. No surviving manuscript, however, can be reliably dated earlier than the medieval period, and the text shows the signs of a work assembled and expanded over time rather than fixed at a single moment: chapter sequencing varies between recensions, and some sections read as later additions responding to material found elsewhere in the classical Jyotisha corpus.

That gap between a legendary Vedic-age author and a medieval documentary record is common to several foundational Sanskrit sciences and is not unique to astrology, but it leaves a genuine open question about when the text reached the form now studied: estimates in modern scholarship range from the early medieval centuries to as late as the twelfth century CE for significant portions of the received text. What is not in question is its functional centrality. Whatever its compilation history, Brihat Parashara Hora Shastra is still taught from directly in contemporary Jyotisha instruction, and its dasha and varga chapters remain the reference point students are expected to know before moving on to any later commentator.