Parathasarathy, don't try to be to smart, first know the facts, then argue. If you are brahnmin, doesn't mean you are smart (say you fools always think). Geological Survey of India study found that the Sethu isn't 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.
