 the Nakshatras); the third book contains commentaries and instructions on Vedic sacrificial rites such as the Purushamedha, Kaukili-Sutramani, Ashvamedha, and Agnicayana.Recorded around 300-400 BCE, it was prevalent in southern India in areas such in Andhra Pradesh, south and east of Narmada (Gujarat), and areas on the banks of the Godavari river down to the sea.A.B Keith states that 'at a comparatively early period the formulae [i.e.