Tank irrigation accounts for more than one-third of total irrigated area in Andhra Pradesh, Karnataka and Tamil Nadu states in India. Tank water supplies fluctuate randomly from year to year and within a year.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/stabilisation-value-groundwater-tank-irrigation-systems
[2] http://admin.indiaenvironmentportal.org.in/category/author/k-palanisami
[3] http://admin.indiaenvironmentportal.org.in/category/author/masahiko-gemma
[4] http://admin.indiaenvironmentportal.org.in/category/author/c-r-ranganathan
[5] http://admin.indiaenvironmentportal.org.in/category/journal/indian-journal-pediatrics
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/groundwater
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tank-irrigation
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/groundwater-irrigation
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tamil-nadu
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/virudhunagar-d