A team of archaeologists excavating a site along the Narmada River has uncovered a series of stone inscriptions dating back to the 4th century BCE. These 'Sama-Vidhana' inscriptions provide an early look into the philosophy of Rta, or cosmic harmony, emphasizing the ethical duty of the individual to maintain balance within the natural world.
The inscriptions are unique for their focus on the metaphysics of environmental stewardship, predating several known texts on Vedic ecology. Experts believe these findings indicate that a sophisticated philosophical tradition regarding the sanctity of the river ecosystem was well-established in the region long before the Mauryan period.