The environment ministry has asked Uttar Pradesh government to submit a revised proposal for declaring the periphery of Okhla Bird Sanctuary an Eco- Sensitive Zone (ESZ).
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/okhla-sanctuary-govt-asked-submit-fresh-proposal
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-standard-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/uttar-pradesh
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/birds
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sanctuaries
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/eco-sensitive-zone
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-environment-and-forests-moef
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/national-board-wildlife