Ratha (Sanskrit: रथ, rátha, Avestan raθa) is the Indo-Iranian term for a spoked-wheel chariot or a cart of antiquity.
The Rigvedic word rá-tha does not denote a war-chariot like those of Andronovo, Egypt, Greece, and Rome. The word is from √ṛ ‘go’ giving primary rá-tha ‘a goer, car, vehicle’. Similar formations exist with the suffix -tha: ártha ‘goal’, ukthá ‘saying’, ǵāthā ‘song’ etc. The rigvedic ratha is described as pṛthu ‘broad’ 1.123.1; bṛhat ‘tall, big’ 6.61.13; variṣṭha ‘widest’ 6.47.9. It has space not for 1 only or 2 (i.e. the driver and the warrior with his spear and bow) but for 3: it is said to be trivandhurá (1.41.2; 7.71.4) and then to carry 8 aṣṭāvandhurá (10.53.7)
Chariots figure prominently in the Rigveda, evidencing their presence in India in the 2nd millennium BCE. Notably, the Rigveda differentiates between the Ratha (chariot) and the Anas (often translated as "cart"). Rigvedic chariots are described as made of the wood of Salmali (RV 10.85.20), Khadira and Simsapa (RV 3.53.19) trees. While the number of wheels varies, chariot measurements for each configuration are found in the Shulba Sutras.
Chariots also feature prominently in later texts, including the other Vedas, the Puranas and the great Hindu epics (Ramayana and Mahabharata). Indeed, most of the deities in the Hindu pantheon are portrayed as riding them. Among Rigvedic deities, notably Ushas (the dawn) rides in a chariot, as well as Agni in his function as a messenger between gods and men. In RV 6.61.13, the Sarasvati river is described as being wide and speedy, like a (Rigvedic) chariot.