The sanctum sanctorum has four doors, one on each side. The doors on the east and south only are opened. The eastern doors opens to the presence of lord Rajarajeshwara, represented by the majestic Jyothirlingam. An array of ghee lamps dangle on both sides of the Jyothirlingam. The Bhadradeepam, a ghee lamp lighted by sage Agastya, the most auspicious lamp with a conspicuous flame is seen on the left side of the Jyothirlingam. On the floor there are rows of silver nilavilakku the ghee lamps, on both sides of the Jyothirlingam.