Mangalasasanam By Divyadesam
The Alvars during the early medieval period of Tamil history (between the seventh and the tenth centuries CE) worshipped Vishnu and his Avatars through their hymns. This collection of their hymns is known as Divya Prabhandham. Mangalasasanam means 'praying that the holy shrines be happy all the time'. The Srivaishnava shrines that were sung about by the Alvars are called Divya Desams. The divyadesams that have the most number of pasurams sung upon them are Srirangam (247), Thirumala (202), Thirumaliruncholai and Thirukannapuram (128 each).
Read more about Mangalasasanam By Divyadesam: Azhwars, List of Divyadesam and Number of Songs For Each Temple, Mangalasasanam Classification, Famous Divyadesams