The Murugan Temple at Saluvankuppam, Tamil Nadu, India, was exposed in 2005 tsunami. It consists of two layers: a brick temple constructed during the Sangam period (the 3rd century BCE to the 3rd century CE) The temple, facing north, had two entrances, from east and west.
Stone vel on a brick platform at the entrance to the shrine
A terracotta bull, a female head made of terracotta, miniature lingam made out of green-stone, a copper bell, conches and terracotta lamps discovered by the ASI at Salavankuppam https://web.archive.org/web/20110824042809/http://www.hindu.com/2007/03/17/stories/2007031701111600.htm
The Garbhagriha or sanctum sanctorum of the Murugan Temple, Saluvankuppam. While the thin, tabular bricks at the top were laid by the Pallavas, the larger bricks underneath date from the Sangam period
original temple was damaged severely by a tsunami or a massive tidal wave action. Subsequently, the Pallava kings converted it into a granite temple in the 8th and 9th century A.D., which too fell to tidal waves or a tsunami. https://web.archive.org/web/20070809174458/http://www.flonnet.com/fl2222/stories/20051104005113000.htm
The inscription on one of the two granite pillars
Artefacts such as roof tiles, terracotta lamps, spinning wheels and a pointed hand of a stucco figurine.
Granite blocks with the images of Ganesa, elephants and so on, carved on them
Granite blocks of the Pallava period Subrahmanya temple.