Hydrology and Water Resources and Information System 20 Aug, 2009 . 1 min read Facebook Twitter SHARE This map shows the river basin-wise annual average availability of water (in m3) for agricultural cultivation, as of 1991 Source: Hydrology and Water Resources and Information System Post By: reena Topic AgricultureRainfed AgricultureClimate and WeatherRainfall and other forms of PrecipitationDroughts and FloodsSurface WaterRivers Sub Categories Maps Regions Political India Email Address View the discussion thread.