Where there is a will there is a way. Punjab can reduce the area under paddy and arrest the fall in its groundwater; it only needs the political will to do so.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/political-will-needed-arrest-fall-water-table
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/tribune-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/groundwater
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/subsidies
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/punjab
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hoshiarpur-d