Asvalayana Srauta Sutra is a text on rituals belonging to the Asvalayana School of the Shakala recension of Rig Veda. Ashvalayana Shrauta Sutra prescribes the ritualistic code to be followed by the Rig Vedic priest Hotr and his subordinates. The sutras are presented in 12 chapters. From the concluding sutra, it is understood that Asvalayana was the disciple of Shaunaka. The first chapter of Asvalayana Srauta Sutra deals with fortnightly rituals (darsha and purnamasa). In the second chapter, adhana ritual is described, followed by agnihotra (offering of oblations both in the morning and in the evening). In this chapter, ‘Chaturmasya’ (rituals performed during the four months) are also described along with many rituals, for the fulfillment of kamyeshti yagas (human desires). In the third chapter of Asvalayana Srauta Sutra, the animal sacrifice is described, followed by sautramani yaga – a sacrifice – in which Sutraman (Indra) is worshipped as the main deity. Some of the expiation rit...