Madhvacharya (c. 1238–1317 CE), also known as Purna Prajna and Ananda Tirtha, was an Indian philosopher and the chief proponent of the Tattvavāda, or Dvaita (dualistic), school of Vedanta. A prominent voice in the Bhakti movement, he presented a dualistic interpretation of the Upanishads, asserting that the individual soul and the ultimate reality (Brahman), identified as Vishnu, are distinct. Born near Udupi in Karnataka, he authored 37 works in Sanskrit. His श्रीमन्महाभारततात्पर्यनिर्णयः (Śrīmanmahābhāratatātparyanirṇayaḥ) is a monumental work that provides a detailed philosophical exposition of the Mahabharata.