Charvaka was a living philosophy up to the 12th century in India's historical timeline, after which this system seems to have disappeared without leaving any trace. Charvaka Siddhantam. The Charvaka school considers perception as the only reliable source of knowledge. Sensory experience is the only valid source of knowledge.

Charvaka, also called Lokayata (Sanskrit: “Worldly Ones”), a philosophical Indian school of materialists who rejected the notion of an afterworld, karma, liberation ( moksha ), the authority of the sacred scriptures, the Vedas, and the immortality of the self. Of the recognized means of knowledge ( pramana ), the Charvaka recognized only.