Muck generated by hundreds of hydro power projects in Himachal Pradesh is being dumped along river beds, which has disturbed the natural course of major rivers in the state.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/dumping-muck-hydro-power-projects-near-rivers-poses-big-hazard-himachal-pradesh
[2] http://admin.indiaenvironmentportal.org.in/category/author/anand-bodh
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/himachal-pradesh
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/dams
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hydroelectricity
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/housing-construction
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/uttaranchal-uttarakhand
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/floods
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/land-encroachments
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ravi
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chamba-d
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kinnaur
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/dams-irrigation