It is believed that Lord Lakshman (the brother of lord Ram) installed a shiva linga and worship the lord shiva for vanishing his sins and took bath in this theertha.

During thai poosam festival (Poosam nakshathra On tamil month thai (Pausa month  in Sanskrit)  is referred as “thai poosam “ in tamil) , there is a floating car procession of Ramanathaswamy  inside the  Lakshmana Theertha pond . It just 50mtrs from our hotel