A total of 55 new stations were supposed to be set up by the end of 2017.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/pollution-delhi-ncr-doesn%E2%80%99t-have-adequate-air-quality-monitoring-stations-says-report
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/financial-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment-pollution-control-authority-epca
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/haryana
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/uttar-pradesh
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sunita-narain
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/centre-science-and-environment-cse