Every year people observe the World Environment Day on June 5 and pledge to protect the environment and keep the rivers clean but fail to follow it in a long run.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/varanasi-clean-ganga-remains-pledge-forgotten
[2] http://admin.indiaenvironmentportal.org.in/category/author/binay-singh
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-lucknow
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/uttar-pradesh
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/varanasi-t
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/river-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ganga
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sewage
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-waste
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution