India has no single groundwater condition. A Bengaluru project may sit over fractured granite. A Mumbai development may excavate through saturated ground influenced by basalt and reclaimed land. Each one needs a different answer.
GWC's India location coverage includes Bangalore, Chennai, Hyderabad, Pune, Mumbai, Kochi and Delhi NCR. Our work helps project teams understand what is happening below a site: how much water the ground holds, how it moves, how it responds to rain and pumping, and where it creates risk for construction, supply or compliance.
India draws on groundwater for farms, homes, factories and entire cities. The national numbers look stable. The local picture often does not.
The 2025 Dynamic Ground Water Resources Assessment, prepared by the Central Ground Water Board (CGWB) with state governments, put India's annual groundwater recharge at 448.52 billion cubic meters (BCM). Annual extraction for all uses was 247.22 BCM. That gives a national stage of extraction of 60.63%.
The average hides the pressure points. Of the 6,762 blocks, mandals and talukas assessed, 730 (10.8%) are over-exploited, where pumping exceeds annual recharge. Another 201 (2.97%) are critical and 758 (11.21%) are semi-critical, according to the same assessment. A site in a stressed unit faces different supply, recharge and approval questions than a site a few kilometers away.
Read the Ministry of Jal Shakti summary of the 2025 groundwater assessment.
CGWB classifies India's groundwater-bearing formations into 14 principal aquifer systems and 42 major aquifers. Alluvium, gneiss and basalt represent different settings for groundwater storage and movement. In hard-rock terrain, groundwater is held mainly in weathered and fractured zones, so conditions can change over short distances.
Ministry of Jal Shakti: principal and major aquifer systems.
IMD's 1971–2020 rainfall normal is 1,160.1 mm annually, including 868.6 mm during the southwest monsoon. Rainfall is much higher in Konkan and Goa than in West Rajasthan. The timing and intensity of rain shape seasonal water-table responses, recharge opportunities, seepage and flood exposure.
CGWB's Annual Ground Water Quality Report 2024 draws on 15,259 monitoring locations. Among the samples tested for each parameter, 19.8% exceeded the nitrate limit, 9.04% the fluoride limit and 3.1% the arsenic limit. These monitoring results describe regional variation; they do not establish the quality of water at a particular site.
Read the Ministry of Jal Shakti summary of CGWB's Annual Groundwater Quality Report 2024.
Each city page covers the geology, groundwater issues and project conditions specific to that city. Start with the location closest to your site.
Bengaluru sits on the granite and gneiss of the South Indian shield, with no large river running through the city. Groundwater lives in weathered rock and fractures, so borewell yields vary sharply across short distances. Campus expansions, tech parks and residential projects here often face questions about supply reliability and recharge.
Chennai is a flat coastal city that gets most of its rain from the northeast monsoon, between October and December. Coastal aquifers, low elevation and a history of both severe floods and severe shortages shape groundwater decisions here. Seawater intrusion and drainage are recurring concerns for sites near the coast.
Hyderabad is built on Deccan granite, with groundwater held in weathered and fractured zones. The city's lakes, drainage channels and rapid expansion toward its outer ring have changed how water moves across the land. The October 2020 floods showed how quickly urban drainage and low-lying sites can be overwhelmed.
Pune sits on Deccan Trap basalt, a layered sequence of lava flows. Water moves through vesicular and fractured layers, and a productive layer at one depth can be absent a short distance away. Industrial belts and growing residential corridors make aquifer characterization important before drilling or excavation.
Mumbai combines basalt bedrock, reclaimed land and some of the heaviest monsoon rain in India. Shallow water tables in low-lying areas create seepage and uplift risk for deep basements. The July 2005 floods remain the reference point for how rain, tides and drainage interact in the city.
Kochi is a low-lying coastal city built around backwaters and estuaries. Shallow groundwater, tidal influence and salinity affect both water supply and foundations. Heavy rain and the 2018 Kerala floods put waterlogging and drainage at the center of site planning here.
Delhi NCR spans Yamuna floodplain alluvium and the older quartzite rocks of the Delhi Ridge. Water quality is a real concern. In CGWB's 2023 sampling of 103 groundwater samples in Delhi, 20.39% exceeded the nitrate limit, 16.5% the fluoride limit and 10.7% the uranium limit.
GWC applies the same technical capabilities in every city. What changes is the ground, the water and the question your project needs answered. Each capability below links to its full service page.
Independent hydrogeological advice at the points where groundwater affects a decision, from site selection to operations.
Mapping of rock types, weathered zones, fractures and structures that control where water is stored and how it moves.
Assessment of where and how a site can return rainwater to the aquifer, based on soil, rock and water table data.
Investigation of how groundwater enters basements, excavations and below-grade structures, and why.
Planning for groundwater control during excavation, informed by aquifer behavior and water table data.
Sampling and monitoring programs that track what is in the water and how that changes over time.
Assessment and recovery planning for aquifers affected by contamination.
Investigation and treatment planning for contaminated land, including how soil pollutants reach groundwater.
Site and campus water planning that links groundwater, surface water, recharge and demand.
Evaluation of supply, quality, regulatory and flood-related water risk before you invest, acquire or expand.
Analysis of how rainfall, drainage and groundwater interact to create flooding and waterlogging on a site.
Inform site selection, basement design, drainage and water supply planning.
Assess supply reliability, recharge potential and groundwater risks during expansion.
Understand water availability, quality and contamination concerns before investment or operational changes.
Consider shallow groundwater, excavation conditions and flood exposure alongside site layout.
Investigate groundwater conditions that affect below-grade works and construction planning.
Support water planning for long-term demand, monitoring and seasonal variation.
CGWB's National Aquifer Mapping and Management programme (NAQUIM) maps and characterizes aquifers and develops groundwater management plans. Regional groundwater records and district-level aquifer maps provide a starting point for understanding the wider setting.
A district map cannot determine the water level beneath a particular plot, the location of a productive fracture, soil permeability or whether contamination is present. Those questions require site records, investigation and monitoring at the scale of the decision.
The starting conditions differ by city. Hard rock aquifers in Bangalore and Hyderabad call for different questions than alluvium in Delhi NCR, or coastal settings in Chennai, Mumbai and Kochi. Each city page explains those conditions in detail.
Share your site location, project type and the groundwater question you need answered. Our team will help identify the next steps.
GWC's India location coverage includes Bangalore, Chennai, Hyderabad, Pune, Mumbai, Kochi and Delhi NCR. If your site is elsewhere in India, contact us to discuss what the project needs.
Our location pages cover Bangalore, Chennai, Hyderabad, Pune, Mumbai, Kochi and Delhi NCR. Each page explains the groundwater conditions and project issues specific to that city.
They do. Bengaluru and Hyderabad sit on hard rock where water is stored in fractures. Much of Delhi NCR sits on river sediments. Chennai, Mumbai and Kochi face coastal effects such as salinity and tidal influence. The same question, such as whether a basement will leak, can have very different answers in each place.
Yes. GWC's groundwater capabilities can support industrial facilities, commercial campuses, real estate developments, logistics parks and infrastructure projects. Typical questions cover supply reliability, water quality, seepage into below-grade structures, recharge potential, flood exposure and contamination.
As early as possible. Before land acquisition or design freeze is ideal, because findings can still shape layout, basement depth, drainage and water supply plans. Assessments on operating sites are also common when a problem appears.
Schedule a technical discussion through our contact page. Share the site location, project type and the question you need answered. Any existing soil reports, borewell records or drawings will help us scope the work.
Tell us where your site is and what decision you are facing. We will tell you what data exists, what is missing, and what it would take to get an answer you can build on.
Schedule a Technical Discussion