Irrigation is a vital input for increasing productivity of crops. It is observed that irrigation played important role in bringing the "Green Revolution" which took place in the country after Independence.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/modernisation-canal-command-areas-through-adoption-piped-networks-andor-micro
[2] http://admin.indiaenvironmentportal.org.in/category/author/s-p-jadhav
[3] http://admin.indiaenvironmentportal.org.in/category/journal/water-energy-international
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/canal-irrigation
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-distribution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/dams-irrigation