In 1990, the Archaeological Survey of India (ASI) discovered a miniature shrine with the Bhuvaraha image in a well type enclosure. This is dated to the Pallava King Narasimhavarman Mamalla's (AD 638-660) reign. It was enclosed with an elliptical well built during Rajasimha's (AD 700-728) period. These are carved on the bedrock that also has the reclining Vishnu in the Shore Temple complex. The miniature shrine is also dedicated to Shiva. It has sixteen-sided base which is carved from bedrock. The circular wall and superstructure are of structural type. There are lions depicted on the pilasters. It is reported as a unique single tiered temple and not seen in other temples of the Pallava period. Its circular shikara, is in vesara style architecture. The shikhara is erected on a circular griva, which has kudus and maha-nasikas on its four sides and each nasika has an image of Ganesha. The kalasa above the shikara is missing. The carving of the Bhuvaraha depicts Varaha as the boar incarnation of Vishnu. This image is in unusual form, unlike another Varaha depictions in other regions of the country, as there is no Bhudevi shown nor an ocean. The depiction is in the form of Varaha performing a diving act into the ocean to rescue Bhudevi or mother earth. The symbolism of this act denotes the myth, only when the temple is submerged in water, as it is below the ground level. The sculpture is seen broken and the base has an inscription referring to titles of the Pallava king Rajasimha. The wall that surrounds the shrine to prevent intrusion of sand from the sea also has an inscription on the topmost layer, in Pallava-Grantha script, which equates the king with Arjuna.