Links:
[1] http://admin.indiaenvironmentportal.org.in/news/dolphins-number-chilika
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/new-indian-express-bhubaneswar
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lakes
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chilka
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/dolphin
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/endangered-species
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/orissa