Rainwater harvesting is an age-old practice in India. It is a process of collection of runoff from treated or untreated land surfaces/catchments or rooftops and storing it in an open farm pond or closed water tanks/ reservoirs or in situ moisture strorage in the soil itself.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/rainwater-management
[2] http://admin.indiaenvironmentportal.org.in/category/author/suraj-bhan
[3] http://admin.indiaenvironmentportal.org.in/category/journal/journal-soil-and-water-conservation
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/groundwater-recharge
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-conservation
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-harvesting
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-harvesting-techniques
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rainfall