Adhvaryu

Priests of the Vedic religion are officiants of the yajna service. As persons trained for the ritual and proficient in its practice, they were called ṛtvij ("regularly-sacrificing"). As members of a social class, they were generically known as vipra "sage" or kavi "seer". Specialization of roles attended the elaboration and development of the ritual corpus over time. Eventually a full complement of sixteen ṛtvijas became the custom for major ceremonies. The sixteen consisted of four chief priests and their assistants.

The older references uniformly indicate the hotṛ as the presiding priest, with perhaps only the adhvaryu as his assistant in the earliest times. The phrase "seven hotars" is found more than once in the Rigveda. Hymn 2.1.2 of Rigveda states it as follows,

तवाग्ने होत्रं तव पोत्रमृत्वियं तव नेष्ट्रं त्वमग्निदृतायतः । तव प्रशास्त्रं त्वमध्वरीयसि ब्रह्मा चासि गृहपतिश्च नो दमे ॥२॥

Thine is the Herald's task and Cleanser's duly timed; Leader art thou, and Kindler for the pious man. Thou art Director, thou the ministering Priest: thou art the Brahman, Lord and Master in our home.

The above hymn enumerate the priests as the hotṛ, potṛ, neṣṭṛ, agnīdh, prashāstṛ (meaning the maitrāvaruna) and adhvaryu.

The term Brahman in the above hymn 2.1.2 refers to deity Agni of hymn 2.1.1.

The rgvedic Brahmanas, Aitareya and Kausitaki, specify seven hotrakas to recite shastras (litanies): hotṛ, brāhmanācchamsin, maitrāvaruna, potṛ, neṣṭṛ, agnīdh and acchāvāka. They also carry a legend to explain the origin of the offices of the subrahmanya and the grāvastut.

The requirements of the fully developed ritual were rigorous enough that only professional priests could perform them adequately. Thus, whereas in the earliest times, the true sacrificer, or intended beneficiary of the rite, might have been a direct participant, in Vedic times he was only a sponsor, the yajamāna, with the hotṛ or brahman taking his stead in the ritual. In this seconding lay the origins of the growing importance of the purohita (literally, "one who is placed in front"). It was not unusual for a purohita to be the hotṛ or brahman at a sacrifice for his master, besides conducting other more domestic (gṛhya) rituals for him also. In latter days, with the disappearance of Vedic ritual practice, purohita has become a generic term for "priest".

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