In a surprising find at a private estate library in Alwar, Rajasthan, scholars have identified a 9th-century manuscript titled 'Hetu-Mala' (The Garland of Reasons). This document provides an exhaustive map of the philosophy of causation within the Nyaya-Vaisheshika tradition. The text details the 'Anvaya-Vyatireka' method—the logic of presence and absence—to prove the existence of an invisible intelligence behind the orderly movements of the natural world.
The manuscript is distinct for its rigorous defense of 'logical realism' against the growing skeptical schools of that era. It includes a series of debating points designed to dismantle arguments that favor random chance over causal order. The discovery of this text in Rajasthan suggests that the region was a vibrant hub for logical inquiry during the early medieval period, attracting scholars from as far as Mithila and Varanasi to engage in the 'War of Reasons.'