The extension was given to balance environmental protection as well as socio-economic well being.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/extension-vecl-against-supreme-court-order-paryavaran-suraksha-samiti
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/daily-news-analysis-ahmedabad
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/gujarat
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/state-pollution-control-board-spcb
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/supreme-court
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chemical-oxygen-demand-cod
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-waste
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment