Enter Sri Vyasatirtha, a luminary in the lineage of Sri Madhvacharya. Vyasatirtha was not just a monk; he was a dialectician of the highest order. He recognized that to establish the Dvaita tenet—that God (Vishnu) and the individual soul are eternally separate and real—required more than just scriptural citation. It required a fortress of logic ( Nyaya ). This led to the creation of the Nyayamruta , literally translated as "The Nectar of Logic."

The publication of Nyayamruta triggered a centuries-long intellectual battle. The Advaita scholar wrote the Advaita Siddhi as a direct, word-for-word refutation of Vyasatirtha’s work. This sparked a series of counter-refutations, including the Nyayamruta Tarangini by Ramacharya, creating what is considered the most sophisticated period of Indian logic. Where to Find Nyayamruta PDF Resources

It is part of the "Vyasa-Trayi," a trio of works (including Tarka-Tandava and Tatparya-Chandrika ) that systematized Dvaita thought.