Archeologists working along the Konkan coast have unearthed a set of copper plates belonging to the 7th century CE that detail a philosophy of Shunyata-Vada within a Vedic context. The plates contain a dialogue between a local chieftain and a wandering sage regarding the metaphysics of emptiness and its practical application in the "ethics of action" (Karma-Niti).
The text is particularly significant for its exploration of Nishkama Karma (selfless action) through the lens of non-dualism, arguing that true freedom is found in acting without a sense of "doership." This discovery provides a missing link between early Mahayana thought and the later development of Vedantic commentaries in the Western Ghats region.