This popularly known as Thanjai “Periya Koil” [Big Temple]. This temple was built by Great Chola Emperor Raja Raja Cholan I in the year 1010 AD . This temple celebrated its 1000th year of existence in the year 2010. This great temple is an example of the architectural excellence of the region. The Tower above the sanctum Sanctorum is 216 feet tall. "Kumbam", a bulbous structure above the tower cut out of one rock weighs almost 80 tons, is regarded as the show case of the Architectural Excellence of the period. The majestic tower and lifting the cupola to the top is a testimony to the engineering skill of the Chola Architects, who planned its construction in such a manner that the shadow of the Cupola does not fall on the ground.
The other attraction of the temple complex is the 12 ½ feet tall, 8 feet long and 5 ft wide sacred bull or Nandi made out of a single rock weighing 25 tons installed outside, in front of the sanctum Sanctorum. The Lingam is 13 ft tall, with a circumference of 54ft