Environment Pollution Control Authority (EPCA) in a report pointed out the hurdles department is facing with the new network installed to monitor the vehicular emissions in Delhi.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/air-pollution-delhi-government%E2%80%99s-expensive-puc-vehicular-emissions-network-system-fails-utility
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/financial-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pollution-under-control-certification
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment-pollution-control-authority-epca
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bharat-stage-iv
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution-control