Keeping environmental issues in mind, Naidu said, the smart cities would go forward with "innovative ideas and learning from others' examples".
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/citing-delhi-smog-venkaiah-naidu-says-focus-environment-smart-city-plans
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/smart-city
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environmental-security
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-urban-development
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-harvesting
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution-control
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment