Narayanacharya (IAST:Nārāyaṇācārya; c. 1600 – c. 1660), was an Indian scholar and philosopher of Dvaita Vedānta tradition. He was the disciple of Vedavyasa Tirtha of Uttaradi Math and is the most celebrated name in the annals of the great dvaita-advaita debate. Narayanacharya is notable for his work Advaita Kalanala, which is a refutation work to Madhvamatamukhamardana of Appayya Dikshita. Indologist B. N. K. Sharma writes, "The Advaita Kalanala is a scathing criticism of the Madhvamatamukhamardana of Appayya. The carping criticisms and bitter personal attacks of the Dikshita are vigorously returned by Narayana. He loses no opportunity to pay the critic in his coin and with compound interest. The tone of the work is thus retaliatory and bitingly sarcastic". Sharma also writes, "Narayanacha