An amsa-avatara of Lord Vishnu, he was born on Aswiyuja Bahula Trayodasi during the churning of the ocean.
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Dhanvantri arose from the churning paying his obesance to lord Vishnu who was in his Kurma Avatara then. He was named Abja. He requested a Yagnabhaaga but was denied. But Vishnu grants him a boon.
In Tamil Nadu, we find Dhanvantri temples in Walajapet and in Coimbatore.
Om Shanti shanti shanti!