Definition of Vedas:
The four oldest texts of Indian literature, the basis of the Vedic religion, are called Vedas. The oldest of the four, the Rig-veda, was composed orally in Sanskrit, the other three being largely copies of the original Rig-veda.
The Vedic texts developed within what is called the Vedic culture, based on castes (varna or ‘color’) and ashramas (stages of religious life).