Aiyaarappar Temple is situated at
Tiruvaiyaru, 11 km away from
Thanjavur. Covering an area of about 15 acres, the temple has a 7 tiered
Rajagopuram and 5 prakarams. The temple contains separate shrines for Somaskandar, Sivayoga
Dakshinamurthy and Darmasamvardhini Amman. The
Shivlinga here is similar to that of
Tiruvarur. There are spots in this temple to echo nada brahma, the primordial sound. The temple has several mandapams and sculpted images.
Inscriptions of
Chola and Pandya kings are preserved in this temple. The main festival is the annual
Brahmotsavam celebrated in the months of March-April. Other festivals include the float festival on Aavani Moolam and Appar festival in the months of July and August.