The Atharvaveda is a sacred text of Hinduism, and one of the four Vedas, often called the "fourth Veda". According to tradition, the Atharvaveda was mainly composed by two groups of rishis known as the Atharvanas and the Angirasa, hence its oldest name is tharv girasa. In the Late Vedic Gopatha Brahmana, it is attributed to the Bhrigu and Angirasa. Additionally, tradition ascribes parts to other rishis, such as Kau ika, Vasi ha and Ka yapa. There are two surviving recensions ( kh s), known as aunak ya (AVS) and Paippal da (AVP).