The CRZ Notification, 2011, stipulates that all proposals have to be evaluated against the approved Coastal Zone Management Plan (CZMP).
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/green-light-ennore-port-phase-3-based-%E2%80%98unapproved%E2%80%99-draft-map
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/new-indian-express-chennai
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tamil-nadu
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/coastal-regulations
[5] http://admin.indiaenvironmentportal.org.in/thesaurus/central-expert-appraisal-committee-ceac
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment-impact-assessment-eia
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ports
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/eco-sensitive-zone
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment