Explanation: Azhwars composed moving hymns addressed to Vishnu. They were compiled in the Nalayira Divviyaprabandham by Nadamuni, at the end of the ninth century.

• Periyalvar lived in Srivilliputtur during the reign of Pandyan king Maravarman Srivallabha in the ninth century.
• The themes are mostly Krishna’s childhood. Krishna is the hero in Andal’s hymns.

Source: Tamil Nadu NCERT