The low caste worship places were open areas, and the deities were installed on a small platform often inside a grove.Kerala earlier had thousands of such sacred groves that were destroyed either by modern culture or by sanskritisation.The sacred groves were sanskritised by building temples on the model of high caste temples over the original installation of the deity on the platform.Often the groves themselves were destroyed to build temples and square shaped buildings called nalukettu around the temples.