**2. Materials and methods**

Information on deep tube wells (DTWs) for groundwater extraction and irrigation, re-excavated canals, ponds, cross dams (check dams), rubber dams for surface water augmentation, dug well and recharge well for rainwater harvesting and groundwater recharge, buried pipelines, drinking water supply installations, prepaid meter for irrigation water management, and other pertinent information were collected from the Barind Multipurpose Development Authority (BMDA), and other sources. Different studies were also reviewed. Finally, all of the data and information were checked for accuracy and consistency before being processed in the appropriate format.
