This is the most famous of the temples here in this town and is very scenic. It is well seen from all the temples around . It is at a height of 500 mtrs and you need to climb 550 steps . It is a very thrilling experience due to the monkeys and the vendors. Please carry water as it is sold for Rs.32 a bottle on the hillock. All pooja articles are better bought down and do not carry anything in plastic covers as the monkeys will pluck it out of your hands.
How to reach:
In front of the Thazha kovil take the road in the market and take the first left turn. There is parking allowed on the road in front of the steps. There is a new temple being built here. You need to buy tickets to climb up, fo your camera and also pooja articles. 
Legend:
Sage Bharadwaja prayed to Shiva for long life to master the vedas, Lord shiva appeared to him and said that even if he lives to eternity what he learns will be only a hand ful as compared to the four vedas he created as hillocks here to state that they will stand eternal. He also said that Bhakthi will be the way to salvation in Kali yuga and not mastery of the vedas. The four hillocks represent the four vedas and the Shiva shrine is situated on the Atharvana veda .
The climb is made cool due to the shelterd pathway
The temple is quite small with an elevated Garbhagriha with a resplendent Shivalingam on a square avudaiyar. The Koshta vigrahas are all placed on the side walls and are at a lower level than the floor after renovation hence you have to down to see but can not enter. There is no Ambal sannidhi here or Nandi.. When I went in the abhishekam was going on and in the cool breeze it was a nice sight.
The exit hate is behind and you will need to climb down via a climb different route which takes you past the spot where the Eagles used to come
There is also an ancient rock cut temple for shiva under the ASI built by the pallavas .
Note that the temple opens only after 8 and darshan commences after 10 AM till noon and reopens at 4 PM.
