Thirunakkara Sree Mahadevar Temple - Credit: Wikimedia Commons
The Thirunakkara Mahadevar Temple situated in the heart of Kottayam is one of the 108 revered Shivalayas in central Kerala, India. The temple is about 500 years old and was built by the Raja of Thekkumkur. It also preserves a number of unique sculptures and murals of various Hindu deities. A common belief is that the idol of Shiva here is installed by Parashurama. The Thekkumkur royal family considered the idol as their (tutelary deity) in the form of "Thirunakkara thevar" Read more on Wikipedia
Source: en.wikipedia.org