EVERYONE KINDLY READ THE POST COMPLETELY<br />Perungudi-Mamallapuram-Cuddalore is an excellent idea. It reduces the distance between C...
more... class="reversehighlighted">hennai and Coastal areas like Puducherry Cuddalore Nagapattinam and it can also be a futuristic route to rameshwaram. But the issues with this Railway are that of the Pallikaranai Marsh and Crossing OMR(Rajiv Gandhi Road).<br />So , it has bifurcate between Velachery and Perungudi station. Some empty land near the Perungudi lake can be used. But it will continue to be a bridge Railway like MRTS till it crosses OMR. Once it crosses OMR , the gradient has to go down such that it reaches the ground at Injambakkam. So the real challenge is between Velachery-Injambakkam. After Mamallapuram , it should turn right so as to avoid the atomic power plant stn. @ Kalpakkam. From then , it can reach PDY via Marakkanam and PDY-CUPJ can be via Ariyankuppam. This Chennai-Puducherry-Cuddalore Railway via Mamallapuram was a part of the Initial plan of MRTS but it was scrapped unfortunately. :)