This movement was ushered in by the Haridasas (literally "servants of Lord Hari") and took shape in the 13th century – 14th century CE, period, prior to and during the early rule of the Vijayanagara empire. The main objective of this movement was to propagate the Dvaita philosophy of Madhvacharya (Madhva Siddhanta) to the masses through a literary medium known as Dasa Sahitya literature of the servants of the Lord. Purandaradasa is widely recognised as the ""Pithamaha"" of Carnatic Music for his immense contribution. Ramanujacharya, the leading expounder of "Vishishtadvaita", spent many years in Melkote. He came to Karnataka in 1098 AD and lived here until 1122 AD. He first lived in Tondanur and then moved to Melkote where the Cheluvanarayana Swamy Temple and a well-organised "matha" were built. He was patronised by the Hoysala king, Vishnuvardhana.