Koil Alwar Thirumanjanam is a purification ceremony held in Shri Venkateswara Temple
. It is performed four times a year before Ugadi, Anivari Asthanam, Vaikunta Ekadashi and the annual Brahmotsavam.
After the first bell, the idols and other articles in the sanctum are transferred to another chamber. Then the sanctum is cleaned and a paste comprising Vermilion, benzoin and sandalwood is applied on the walls. Later, the walls are cleaned. After the second bell, the food is offered to the deity.