Explorers in a remote part of Gujarat have found a leaden box hidden within the walls of a 12th-century stepwell containing the 'Tarka-Vritti'. This manuscript is a specialized commentary on the logic of infinite regress (Anavastha), providing one of the most detailed medieval critiques of causal chains in Indian philosophy.
The text is significant for its use of reductio ad absurdum to challenge contemporary theories of divine causality. Its discovery suggests that even in rural areas, sophisticated logical debates were preserved by local families and scholars long after the major universities had declined.