Mamallapuram (also called Mahaballipuram) is about an hour's drive from Chennai on the East Coast Road. It was the second capital and seaport of the Pallava Kings who ruled in the 5th century. Local legend has it that there was once a beautiful city here with seven temples, which the Gods submerged under the sea in anger.until in 2002, an Indo-British team of divers discovered a series of man-made structures under water, covering an area of several square miles.Today at Mamallapuram, you can see the famous Shore Temple, the only surviving temple out of the original seven (the rest have sunk under the sea). The Shore Temple is among the oldest temples of South India and represents the final flowering of Pallava art. Arjuna's Penance, one of the world's biggest bas-reliefs depicts the storey of the descent of the River Ganges from Heaven to Earth. Cave temples and massive monolithic sculptures (carved from a single large block of granite) make Mamallapuram a place to remember.