Chandeswaran is an important Shiva Bhootha Ganam or Gana. He plays an important role in most Shiva temples in South India. He is the nirmalyadhari of Shiva. He is usually placed in the southeast corner of a temple.
As per some texts, Chandeswaran is the most important governing official of a Shiva temple.
He is depicted as sitting with left leg in padmasana position and other leg hung down freely.
In the right hand he holds an axe.