Yes, I completely agree with you Tamil magan. There is no Rama sethu.Geological Survey of India study found that the Sethu isn%u2019t manmade but a result of sedimentation of clay, sandstone and limestone. NASA calls it a tomobolo, a bar of sand connecting one island with another that usually indicates a constant sediment source. For evidence check out this URL http://www.indianexpress.com/sunday/story/33813.html