The Nayanars were the worshippers of lord Shiva and the Alvars were the worshippers of lord Vishnu. Both the groups were South Indian poet saints.
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Nayanars - The Nayanars or Nayanmars were devotional saint poets of vishnuin Tamil Nadu, who were active between the 5th and 10th centuries CE.

Alvars - The alwar or azhwars were Tamil poet-saints of south India who espoused ‘emotional devotion’ or bhakti to Visnu-Krishna in their songs of longing, ecstasy and service.

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