Sanskrit is the classical language used in most Vedic texts of ancient India. More precisely, the oldest Vedic compositions are written in Vedic Sanskrit, an early form of Sanskrit that differs in grammar, vocabulary, pronunciation, and meter from the later Classical Sanskrit used in works such as Kalidasa’s poetry.
The Vedas are a collection of sacred texts preserved through highly disciplined oral traditions. The Rigveda, Samaveda, Yajurveda, and Atharvaveda contain hymns, ritual formulas, chants, and spells. Priestly schools memorized the material through recitation techniques designed to preserve the wording and sound across generations.
Vedic Sanskrit belongs to the Indo-Aryan branch of the Indo-European language family. Its preservation is especially significant because much of the Vedic corpus circulated orally before being written down, and pronunciation was considered essential to ritual accuracy.
Tamil, Prakrit, and Pali are important ancient South Asian languages, but they are not the main language of the Vedas. Pali is strongly associated with the Buddhist canon, while Prakrits were widely used in inscriptions and non-Sanskrit literary traditions.