Nathar Vali (died 1225 CE) was a Sufi saint and among the first Sufis to bring Islam to South India and Sri Lanka. He came to Trichy in the 11th century; his shrine is located in Tiruchirapalli, Tamil Nadu, which according to legend is atop the grave of the three-headed Hindu demon Tiriasuran whom Natha killed.Nathar Vali's origin is unclear, though various legends describe him as a Byzantine nobleman, who left his comfortable life in search of murshid (spiritual preceptor).