Theres a Maharishi named Kashyapa who has two wives - Karththuru and Vinathai. They had a fight in between them about the black spot on the tail of uchchaisiravas , the Horse of Indra. They repented for their fight and came to Thirumaiyachur and worshiped the lord. The Lord Meghanadhar blessed and gave them a egg each, asked to preserve it for an year to get splendid sons. They got Garudan, Arunan respectively.
Once Arunan took the form of Mohini like a charming girl . The Sun God harmed her.When Arunan pleaded to the Lord Shiva here, he cursed Sun god Surya to get darkened.
Lord Shiva cursed Surya the sun God whos body was burnt. So Surya does Tapas ( meditation ) here for 7 month. Surya started screaming since he regained the color of his body even after showing such devotion. The Goddess
Parvathi who was alone with Lord Shiva got disturbed by Surya’s scream and was about to Curse him.
Since Surya is already suffering by curse , Lord Shiva blessed her to be in peace as “Shanta Naayagi” . Since Shiva himself asked Lalithambigai to be calm, the angels called “vasini ” emerged from mouth of Lalithambigai and sung
the 1000 holy names in praise of Goddess which came to be known as Lalitha Saharanaamam
From the mouth of shakti appeared the vachini devatas and they gifted us with Lalitha Sahasranamam
Hayagrivar conveyed to sage Agasthiyar lalita sahasranAmam. As told by him Agasthiyar came to this temple and worshiped the God in the AmlA phalAdi kraNa pUja as done by the sun and saluted Sri Lalithambiga
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