Links:
[1] http://admin.indiaenvironmentportal.org.in/news/lucknow-scientists-identify-sukhna-lake-mystery-weed
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-chandigarh
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/weeds
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lucknow-d
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sukhna
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lakes
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/scientists
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/research-agencies
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lake-pollution