A square shaped Shiva linga in Chennai temple

Sri Karaneeswarar is one among the seven must see Shiva temples around Mylapore. Sage Agasthiya, one among the Saptha Rishis, is said to have worshiped this temple. This temple is considered one of the first among the seven Saptha Sthana Shiva Temples.

As per the legend, there used to be a young Brahmin in Mylapore who used to perform poojas to Shiv Linga. Through his penance, the young Brahmin found out that Lord Shiva was the cause of creation, protection and destruction of this universe. Thereafter, the Shiv Linga is called as Karaneeswara. "karanam" means reason in Tamil language, therefore Karaneeswara means "one who causes".

The main deities of the temples are Karaneeswara and Porkodi Amman, also known as Sorna Lalithambigai. Both the deities are found in two separate shrines. The temple has a small tower and as per the tradition followed in all old South Indian temples, this temple also has bali peeth, flag staff and Nandi idol facing the main shrine.

The history of this temple dates back to 12th Century. From the inscriptions Chola king, Vikrama Chola was attributed with the construction of this temple. Many inscriptions found in the temple are missing because of renovation and repainting. It is believed that Sage Vasishta worshiped Sri Karaneeswarar at Mylapore. It is quite an ancient temple with 5 tier gopuram facing east.

However there are some who argue that the original structure was built in 17th century. But the current structure is very recent due to renovation.

The Shiva linga here is square shaped. The same can be seen only in Thirukkadaiyur and Kalahasthi. Vinayagar and Murugan have their seperate shrines where thay appear along with their spouses.