Raja Ram Purohit

The paper describes the methodology used in the groundwater resource estimation and the results of the latest country-wide assessment. In India, dynamic groundwater resources are estimated jointly by the Central Ground Water Board (CGWB) and State governments at periodic intervals. The latest estimates of dynamic resources are based on groundwater resource estimation methodology-1997 (commonly known as GEC-1997). These estimations are widely used in formulating various groundwater development and management plans. The paper also discusses future strategies on groundwater resource estimations.