The fact that ground water in Malwa, a southern area of Punjab, has traces of uranium in its ground water was established even in the past.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/uranium-traces-punjab-ground-water
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/asian-age-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/faridkot-d
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/uranium
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/groundwater-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bhabha-atomic-research-centre-barc
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/high-court
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/public-interest-litigation-pil
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/punjab