The outer prakara of Srikoil is fitted with rows of small
brass lamps, numbering over several thousands. Devotees who offer
this puja enjoy the privilege of lighting. Either, oil or ghee is
used, and the lamps burn for nearly three hours, making the entire
courtyard bright and magnificent, pleasing to the Lord and devotees,
assembled around the Srikoil. It is a costly puja, yet almost every
alternate day one can observe this.