About chaduragiri hill

anybody know chaduragiri hill?
this hill was located in near srivilliputtur,tamilnadu.
moreover siddhars meeting point,lots of herbals available there, like chiranjeevi, alukkathan,karunelli, i gave here some herbals which is not available (rare). then nature,swamis sundra mahalingam,chandhana mahalingam. when we reaching the top most point we just around the hill,it looks like square.square means in tamil chaduram