Abirameswarar Temple (also called Thiruvamathur Temple) is dedicated to Shiva, It is located in thiruvamaathur, in Viluppuram district on the Chennai - Villupuram highway.
Shiva is worshiped as Abirameswarar, His consort Parvati is depicted as Manonmani Amman.
The presiding deity is revered in the 7th century Tevaram
The original complex is believed to have been built by Cholas.
Main temple was built by Achyuta Deva Raya of Vijayanagara Empire.
legend
during the original creation, cows were without horns and all the other predators were troubling them. They prayed to Shiva to provide them horns. Shiva was pleased with the devotion and offered them horns. Since cows (called aa in Tamil) got horns at this place, it came to be known as Thiruamathur.