Arnab Pratim Dutta , Beaches , Coastal Development , Coastal Erosion , Conflicts , Conflicts , Dredging , Estuaries , Estuaries , Habitat And Urbanisation , Habitat And Urbanisation , Habitat And Urbanisation , Mangroves , Mangroves , Mangroves , Marine Fisherfolk , Marine Fisheries , PONDICJERRY , Ports , Ports , Tamil Nadu ,