The Punjab Pollution Control Board (PPCB) team took samples from Surry, a tributary of the Beas, to ascertain the cause behind the death of a large number of fish in the water bodies.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/fish-die-ppcb-takes-samples-rivulet
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/tribune-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/punjab
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hoshiarpur-d
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/river-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fish
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/state-pollution-control-board-spcb-0
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution