Tirumanjanam means “Cleaning with aromatic ingredients”. Koil Tirumanjanam is a purification ceremony of the sanctum santorum and temple premises by devotees. During the ceremony all the deities and other paraphernalia are removed from santum santorum and cleansed; the “Mula Virat”, at this cleansing time, is covered and water proofed. The entire Garbha Griham, including floors, ceilings and walls, sub-shrines inside the sanctum and puja articles are cleaned with water and Tirumanjanam; the Tirumanjanam is made up of camphor, sandal paste, saffron, turmeric Kicchili Gadda (a root vegetable) etc. and is smeared. It acts as a disinfectant. Once the cleansing is done, the covering of the main deity is then removed and the deities, deepam and other articles are replaced inside. Special pujas and Naivedyams are then offered to the presiding deity. This ceremony is performed strictly as per the agamas and is conducted four times a year viz. before Ugadi, Anivara Asthanam, Vaikunta Eakadasi and Annual Brahmotsavams.