It is one of the important pilgrimage center of tamilnadu.Though Hindus seek god in the form of idol, it is also their strong belief that god can be worship in the form of light or Flame. The Karthigai Deepam festival when the big flame is lit atop the Thiruvannamalai hills draw a huge crowd and devotees.

The Sculptures in the pillars and the idol lingam are very huge and enticing that tey make one wonder at the renowned. A large number of foreign as well as domestic tourists and aspirant for spiritual solace and solitude congregate here.

Thiruvannamalai has become an international center of study in spiritualism.