Alwar, a leading figure in the history o the Vaishnava movement in the South, was a
profound scholar in Sanskrit and Tamil. He came under the influence of Nammalwar and sang
several devotional songs praising Vishnu in the form of Rama and Krishna.
His main literary works are Mukundamala in Sanskrit and
Perumal Tirumozhi in Tamil. He revered the servants or devotees of Vishnu as 'gods
themselves and wrote in his Perumal Tirumozhi: "Upon my brow I will bear with pride
the mud that stains their holy feet." His teachings and writings contributed in no
small measure to the development of Vaishnavism in Kerala. Growth of Saivism and
Cheraman Perumal Nayanar, one of the two Nayanars from
Kerala, as stated above, has been identified with Rajasekhara Varman (820-844 A.D.), the
second of the kings who ruled over the Kulasekhara empire.He spent his boyhood at the
famous Siva shrine at Tiruvanchi - kulam, near Kodungallur, worshipping the Lord. He went
on pilgrimage to all - important Saivite shrines in South India in the company of his
life-long friend and companion, Sundaramurti Nayanar of Tiruvarur. The two saints are also
believed to have breathed their last at Tiruvanchi- kulam where their images may still be
seen in the Siva temple.