Researchers in the Malwa region have cataloged a rare 11th-century palm-leaf manuscript titled the Tarka-Vritti-Sangraha, found in a private family archive. The text is a comprehensive treatise on Nyaya logic, specifically focusing on the epistemology of 'counter-evidence' and the formalization of doubt. It introduces a novel symbolic notation for logical fallacies that predates the well-known Navya-Nyaya school by nearly two centuries.
The manuscript is attributed to an itinerant logician named Jayanta-Bhatta II, who appears to have integrated Buddhist syllogistic techniques with orthodox Vedic dialectics. Experts suggest that the Tarka-Vritti-Sangraha provides a much-needed explanation for how medieval Indian thinkers reconciled empirical observation with metaphysical truths during a period of intense intellectual competition between rival schools of thought.