Switch thirsty crops, water by drip
Where most water goes to fields, moving from paddy and sugarcane to millets, pulses or maize, and from flood to drip or sprinkler irrigation, saves more than any recharge can add.
This area pumps out more water than rain puts back. That is the 2025 stage of groundwater extraction: water pumped out in a year as a share of what rain and other sources safely put back. Down 6 points since 2017.
Each point is one CGWB assessment. Over-exploited means more water leaves the ground than comes back, so the water table keeps falling. Hover over or tap a point to see why it moved.
| Year | Stage | Pumped out | Safe limit | Category | What changed |
|---|---|---|---|---|---|
| 2009 | 148.0% | 1.2 billion m³ | 810 million m³ | Over-exploited | First assessment in this series. |
| 2013 | 122.0% | 1.2 billion m³ | 951 million m³ | Over-exploited | Pumping down 4% (1.2 → 1.2 billion m³). Safe limit up 17% (810 → 951 million m³). Main reason: more water soaked back into the ground, from better rain, canals or recharge structures. |
| 2017 | 114.8% | 1.3 billion m³ | 1.1 billion m³ | Over-exploited | Pumping up 9% (1.2 → 1.3 billion m³). Safe limit up 15% (1.0 → 1.1 billion m³). Main reason: more water soaked back into the ground, from better rain, canals or recharge structures. CGWB changed its method in 2017 (GEC-97 to GEC-2015), so part of this change comes from the new method. |
| 2020 | 103.1% | 1.0 billion m³ | 1.0 billion m³ | Over-exploited | Pumping down 17% (1.3 → 1.0 billion m³). Safe limit down 8% (1.1 → 1.0 billion m³). Main reason: less water was pumped out, mostly for irrigation (1.2 → 1.0 billion m³). |
| 2022 | 105.0% | 741 million m³ | 705 million m³ | Over-exploited | Pumping down 29% (1.0 → 0.7 billion m³). Safe limit down 30% (1.0 → 0.7 billion m³). A swing this large usually comes partly from revised estimates (a new well count or changed district boundaries), not only from changes on the ground. |
| 2023 | 108.2% | 768 million m³ | 710 million m³ | Over-exploited | Pumping up 4% (741 → 768 million m³). Safe limit up 1% (705 → 710 million m³). Main reason: more water was pumped out, mostly for irrigation (719 → 747 million m³). |
| 2024 | 109.7% | 810 million m³ | 739 million m³ | Over-exploited | Pumping up 5% (768 → 810 million m³). Safe limit up 4% (710 → 739 million m³). |
| 2025 | 108.7% | 811 million m³ | 746 million m³ | Over-exploited | Pumping up 0% (810 → 811 million m³). Safe limit up 1% (739 → 746 million m³). |
Million m³: 1 million m³ = 100 crore litres. 2009 and 2013 used the older GEC-97 method.
Loading 20 years of rainfall…
0 of 2,244 water bodies (0%) are not in use: dried up, silted, built over or polluted. Bringing them back is one of the cheapest ways to recharge groundwater.
Loading the map of water bodies in Mahesana…
Source: 1st Census of Water Bodies, Ministry of Jal Shakti (counted in 2018-19, published 2023).
Most of the water here goes to farming, so using less on fields matters as much as recharge.
Where most water goes to fields, moving from paddy and sugarcane to millets, pulses or maize, and from flood to drip or sprinkler irrigation, saves more than any recharge can add.
Parks, campuses, warehouse yards and road sides can take recharge shafts that reach past the clay layer, so runoff that floods streets goes down to the aquifer instead.
Desilting old ponds and opening their feeder channels restores natural recharge. A one-hectare pond that soaks in a metre of water over the monsoon puts back about a crore litres.
Pipe roof water through a silt trap and filter into a recharge pit or an old borewell. Every 100 m² of roof puts back tens of thousands of litres a year, right where the pumping happens.
On sloping or rocky land, small dams on seasonal streams and trenches along contours slow water down long enough for it to sink in.
Treated water from a sewage treatment plant can run flushing, gardens, cooling towers and construction, which today often draw on borewells.
In the 2025 Central Ground Water Board assessment, Mahesana (Gujarat) pumped out 109% of the groundwater that can be safely taken out each year, which puts it in the "over-exploited" category. That is 6 points lower than in 2017.
Yes. Mahesana takes out more groundwater than rain and other sources put back, so the water table keeps falling.
Rooftop rainwater harvesting into recharge pits or old borewells, recharge shafts in open land, reviving ponds, check dams, treating and reusing wastewater, and moving farms to drip irrigation and less thirsty crops.
The first Census of Water Bodies counted 2,244 water bodies in Mahesana, including 379 ponds. 0 of them were not in use.
Yearly rain at Mahesana, 2006–2025, from NASA satellite data. Lighter bars are dry years (20% or more below average), when wells are drawn hardest.
To stop the water table falling, Mahesana has to put back or save 65.2 million m³ a year. At 782 mm of rain, here is what that looks like:
In practice it is a mix: recharge in towns, ponds and check dams in villages, and saving water on farms and in factories.
1 mm of rain on 1 m² is 1 litre. The surface factor allows for water lost to splash, evaporation and first-flush.