Between 1983 to 1990, the well-fortified township of Dwaraka was discovered, extending more than half mile from the shore. The township was built in six sectors along the banks of a river. The foundation of boulders on which the city's walls were erected proves that the land was reclaimed from the sea. The general layout of the city of Dwaraka described in ancient texts agrees with that of the submerged city discovered by the MAU. According to the discoveries, Dwaraka was a prosperous city in ancient times, which was destroyed and reconstructed several times. The work of great excavators like Z.D. Ansari and M.S. Mate allowed chance discovery of temples of the 9th century A.D. and 1st century A.D. buried near the present Dwaraka. Conclusions arrived at after carrying out these underwater archaeological explorations support and validate the dates arrived at through astronomical calculations. They also prove that the reconstructed city was a prosperous port town, and that it was in existence for about 60-70 years in the 15th century B.C. before being submerged under the sea in the year 1443 B.C. "The discovery of the legendary city of Dwaraka which is said to have been founded by Shri Krishna, is an important landmark in the history of India. It has set at rest the doubts expressed by historians about the historicity of Mahabharata and the very existence of Dwaraka city. It has greatly narrowed the gap of Indian history by establishing the continuity of Indian civilization from the Vedic age to the present day." (S.R. Rao, former adviser to the NIO who is still actively involved in the excavations).