The Shitalakhya River, also known as Lakhya Nodi, a tributary of the Brahmaputra, flowing through the district has nearly become dead due to industrial waste and chemical.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/industrial-waste-dyeing-chemical-slowly-killing-shitalakhya
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/dhaka-tribune-dhaka
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/river-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-waste
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hazardous-waste
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bangladesh
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/common-effluent-treatment-plant-cetp
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/south-asia