The forest department, which generally takes care of tree covers and forest land, has quite a different job to do in Manali.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/hp-forest-dept-fights-impose-ngt-ban
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-chandigarh
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/himachal-pradesh
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/forests
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/land
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/national-green-trbunal-ngt
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tourism
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/trees