Again a new city was built in the remaining shore. krishna's grandson's (Aniruddh) wife Usha belonged to that city. Krishna visited that city to secure the release of Aniruddh for which he for the first time did "karakaattam" (kuda-k-kootthu) - a dance done by balancing pots on the head. That city was referred to as “VANan pErUr” in Silappadhikaram. The capital of the city was known as “ChO”.
So far, in the history of Bharat, only three cities had been built and rebuilt every time after they were lost, due to inundation in all the three cases. That shows the tremendous importance, history and culture attached to those places. They are Dwaraka, Madurai and Mahabalipuram. Of these the last Madurai was built inland to avoid submergence. All these three places have past histories going back upto 12000 + years. In the case of Mahabalipuram, with sunken places coming into our knowledge let us hope the ASI takes serious interest and does more research on this section of the sea.
In a discovery that could lead to more underwater explorations off the historic town of Mamallapuram, a group from National Institute of Oceanography (NIO) has found the remains of a port or ruins of one of the six shore temples which, according to legend, went under water. The 10-member team, comprising divers, geologists and archaeologists, found a 10m-long wall, a short flight of stairs, and chiselled stone blocks scattered on the seabed.
“We also found some brick structures, which were sighted more during the Sangam period (300 BC- 200 AD),” said Nigam, who also pitched in with research after a team in 2001 stumbled upon a 9,000-year-old underwater town in the Gulf of Cambay near Gujarat. Nigam, a geologist, embarked on the project in Mamallapuram after studying the history of sea-level pattern.