Shakha in the context of "Rigveda"

The historical Vedic religion, also called Vedism or Brahmanism, and sometimes ancient Hinduism or Vedic Hinduism, constituted the religious ideas and practices prevalent amongst some of the Indo-Aryan peoples of the northwest Indian subcontinent (Punjab and the western Ganges plain) during the Vedic period (c. 1500–500 BCE). These ideas and practices are found in the Vedic texts, and some Vedic rituals are still practised today. The Vedic religion is one of the major traditions which shaped modern Hinduism, though present-day Hinduism is significantly different from the historical Vedic religion.

The Vedic religion has roots in the Indo-Iranian culture and religion of the Sintashta (c. 2200–1750 BCE) and Andronovo (c. 2000–1150 BCE) cultures of Eurasian Steppe. This Indo-Iranian religion borrowed "distinctive religious beliefs and practices" from the non-Indo-Aryan Bactria–Margiana culture (BMAC; 2250–1700 BCE) of south of Central Asia, when pastoral Indo-Aryan tribes stayed there as a separate people in the early 2nd millennium BCE. From the BMAC Indo-Aryan tribes migrated to the northwestern region of the Indian subcontinent, and the Vedic religion developed there during the early Vedic period (c. 1500–1100 BCE) as a variant of Indo-Aryan religion, influenced by the remnants of the late Indus Valley Civilisation (2600–1900 BCE).

Kanva or Kanwa (Sanskrit: कण्व, IAST: Kaṇva) was an ancient Hindu rishi of the Treta Yuga, to whom some of the hymns of the Rig Veda are ascribed. He was one of the Angirasas. He has been called a son of Ghora, but this lineage belongs to Pragatha Kanva, a subsequent Kanva of which there were many. However, Puranic literature has other different lineages for him, one as the son of Apratiratha and grandson of King Matinara, and another as the son of Ajamidha, who was a descendant in the ninth generation of Tansu, the brother of Apratiratha (Atiratha), or Ajamidha who was a contemporary of Matinara. This last seems to be the modern consensus. He is sometimes included in the list of the seven sages (the Saptarishis).Kanva had a son Medhatithi. Kanva is also mentioned in Mahabharata as the adoptive father of Shakuntala.

• Kanva (Karnesh) is also the name of a founder of a Vedic shakha of the Shukla Yajur Veda, and hence the name of that theological branch of Hinduism, the Kanva Shakha.
• Kanva (Karnesh) is also the name of several princes and founders of dynasties and several authors.
• The Kanvas (Karnesh) are the descendants of king Vasudeva Kanva (1st century BCE).
• The Kanvas are also a class of spirit, against whom hymn 2.25 of the Atharva Veda is used as a charm.

Shakala Shaka (Sanskrit: शाकल शाखा; IAST: Śākala Śākhā), is the oldest shakha (from skt. śākhā f. "branch" or "recension") of the Rigveda. The Śākala tradition is mainly followed in Maharashtra, Karnataka, Kerala, Odisha, Tamil Nadu and Uttar Pradesh. The Mahābhāṣya of Patañjali refers to 21 śākhās of the Rigveda; however, according to Śaunaka's Caraṇa-vyuha there are five śākhās for the Rigveda: the Śākala, Bāṣkala, Aśvalayana, Śaṅkhāyana, and Māṇḍukāyana, of which only the Śākala and Bāṣkala and few of the Aśvalayana are now extant. The only complete recension of Rigveda known today is of the Śākala School. There is a claim that Śaṅkhāyana Śākhā is still known to a few Vedapathis in Uttar Pradesh and Gujarat but this is not certain.

The main saṃhitā for Śākala Sākhā is the Śākala Saṃhitā and the corresponding brahmana is Aitareya Brāhmaṇa. The main Upaniṣat of the Śākala Śākhā is Aitareya Upaniṣat. The Śrauta Sūtram for Śākala Shākhā is Āśvalāyaṇa Śrauta Sūtra and the Gṛhya Sutra is Āśvalāyana Gṛhya Sūtram. The Āraṇyaka of Śākala Śākhā is Aitareya Āraṇyaka.

The Brahmanas (/ˈbrɑːmənəz/; Sanskrit: ब्राह्मणम्, IAST: Brāhmaṇam) are Vedic śruti works attached to the Samhitas (hymns and mantras) of the Rig, Sama, Yajur, and Atharva Vedas. They are a secondary layer or classification of Sanskrit texts embedded within each Veda, which explain and instruct on the performance of Vedic rituals (in which the related Samhitas are recited). In addition to explaining the symbolism and meaning of the Samhitas, Brahmana literature also expounds scientific knowledge of the Vedic Period, including observational astronomy and, particularly in relation to altar construction, geometry. Divergent in nature, some Brahmanas also contain mystical and philosophical material that constitutes Aranyakas and Upanishads.

Each Veda has one or more of its own Brahmanas, and each Brahmana is generally associated with a particular Shakha or Vedic school. Less than twenty Brahmanas are currently extant, as most have been lost or destroyed. Dating of the final codification of the Brahmanas and associated Vedic texts is controversial, as they were likely recorded after several centuries of oral transmission. The oldest Brahmana is dated to about 900 BCE, while the most recent are dated to around 700 BCE.