Groundwater Regulation Across India: A State-by-State Legal Framework

India draws more groundwater than any other country on the planet, with estimates from the Central Ground Water Board suggesting that wells irrigate roughly 60 percent of the country's net sown area. Aquifers sit beneath villages, townships, and industrial corridors from the Thar Desert to the Brahmaputra valley, yet the legal rules that govern how water is pulled from them vary enormously from one state to the next.

Because water is a State subject under Entry 17 of the Seventh Schedule to the Constitution, each legislature can frame its own groundwater law. The central government, through the Central Ground Water Authority, sets model templates and issues directions in heavily overexploited zones, but the day-to-day regulation of borewells, agricultural pumps, and industrial abstraction rests largely with state agencies.

This patchwork has produced a curious mix of progressive frameworks and regulatory vacuums. Some states have updated their statutes to recognise aquifers as a common pool resource; others still rely on nineteenth-century easements that treat subsoil water as the property of the landowner above. Australian readers familiar with the Murray-Darling Basin Plan will recognise a parallel debate, where Commonwealth oversight is balanced against state licensing powers in New South Wales, Victoria, and Queensland.

The sections below walk through the constitutional basis for groundwater governance, the model legislation that shapes state practice, and the specific rules enacted by India's regions. A comparative table offers a quick reference before the detailed state-by-state overview begins.

Constitutional foundations and central oversight

Groundwater occupies an unusual position in Indian federalism. While rivers and inter-state water disputes are explicitly listed under the Union List, the rules for subsoil water remain a State subject, and the Constitution does not separately classify groundwater as either surface water or a mineral. The Supreme Court has clarified, through judgments in M.C. Mehta v. Kamal Nath and related rulings, that groundwater is part of the public trust doctrine even when it lies beneath private land.

The central government nevertheless plays a substantial role through the Environment (Protection) Act, 1986. The Central Ground Water Authority uses Section 5 of that Act to regulate industrial and infrastructure projects in over-exploited areas, requiring impact assessments and prior permission. For agricultural users, however, the Authority's reach remains limited, and most borewell registration happens at the district level.

A practical example is the way the Authority interacts with seasonal monitoring. Annual Ganga basin trends feed into the periodic notifications that determine whether a particular block requires fresh restrictions on new abstraction. Researchers in Sydney and Adelaide working on comparative transboundary aquifers often cite this dataset as one of the most comprehensive publicly available records in Asia.

Model bills and their uneven adoption

Since 1970, the central government has circulated a series of Model Groundwater Bills, the most recent version being the Model Bill for Groundwater (Sustainable Management) Act, 2017. The bills suggest registration of all wells, the creation of state-level groundwater authorities, and the classification of blocks according to extraction stress. States are free to adopt, adapt, or ignore these templates.

Tamil Nadu was an early mover, passing its legislation in 2000 after the model bill circulated in 1992. Karnataka followed a decade later, while Maharashtra drew heavily on the 2005 draft. Some states, notably West Bengal, Odisha, and most of the Northeast, have not adopted comprehensive groundwater statutes, instead relying on minor irrigation codes and the central guidelines.

This uneven adoption has direct consequences. A farmer installing a 30-horsepower submersible pump in Punjab faces a different approval pathway than one in Assam, where there is no statutory registration at all. The variation also complicates interstate projects, such as the river-linking proposals, where upstream pumping affects downstream recharge in unpredictable ways.

Northwestern states under stress

The northwestern states of Punjab and Haryana sit on the upper Indus system, where intensive rice-wheat cultivation has pushed water tables to historic lows. Punjab's response has been a mix of crop diversification incentives and engineering measures, including mandatory rainwater harvesting in municipal areas of Amritsar, Ludhiana, and Chandigarh. The state has also experimented with a smart metering pilot for agricultural connections, an approach that echoes the water-trading platforms used in the southern Murray-Darling Basin near Melbourne.

Haryana's 2020 Water Resources Act marked a sharper shift, requiring registration of all existing abstraction structures and creating a state-level authority to issue and revoke permits. The Act also empowers district officials to seal borewells in dark zones where the water table has dropped by more than four metres over a decade. Similar provisions have been borrowed from Rajasthani legislation, although enforcement across the Bikaner and Jaisalmer districts remains uneven.

In Himachal Pradesh, the situation is partly reversed. The hill state draws comparatively little groundwater, and the state government has resisted central pressure to register small domestic wells, citing concerns about rural drinking water access. Discussions are ongoing about a separate framework for mountain aquifers, drawing on the work captured in the aquifer mapping program guide.

Southern frameworks and aquifer-specific rules

The southern states have, in many respects, the most developed groundwater legal architecture. Tamil Nadu's Act establishes a regulatory framework administered by District Collectors, who maintain registers of wells, pumps, and structures larger than a specified capacity. Violations attract penalties, although the rate of prosecution remains modest outside Chennai and Coimbatore.

Karnataka went further by establishing a dedicated Karnataka Groundwater Authority with its own budget and enforcement staff. The Authority classifies taluks according to groundwater stress and publishes monthly bulletins. Of particular note is the Authority's approach to fluoride- and nitrate-affected aquifers, where permissions for new borewells are restricted until remediation plans are submitted.

Kerala's 2020 Groundwater Act represents a regional first: the state has banned new wells in panchayats classified as severely stressed, prioritising piped supply and managed aquifer recharge instead. This decision followed years of community campaigning in the Palakkad and Wayanad regions, where falling water tables coincided with seasonal droughts that mirror conditions seen around Perth in Western Australia.

Eastern and northeastern approaches

The eastern states tell a different story. West Bengal, Odisha, and Bihar have not adopted comprehensive groundwater statutes, partly because the region's aquifers are generally recharged by the Ganga-Brahmaputra system and partly because political attention has focused on surface water disputes. Groundwater here is regulated indirectly through Public Health Engineering Department norms and the Water (Prevention and Control of Pollution) Act.

In Odisha, the state government has been drafting a Groundwater Bill since 2018, drawing on the Model Bill 2017, but consultations with tribal communities in the Mayurbhanj and Koraput districts have delayed progress. The northeast presents an even more varied picture: Assam regulates irrigation wells through the Assam Ground Water (Control and Regulation) Act of 2012, while states like Meghalaya and Nagaland have yet to introduce dedicated legislation.

These regulatory gaps are not always negative. In much of the Brahmaputra valley, groundwater remains plentiful, and the cost of installing a statutory framework would exceed the immediate regulatory benefit. However, climate change projections suggest that the eastern states will face increased stress within two to three decades, and early legal preparation could prevent the kind of crisis now unfolding in parts of Bundelkhand.

Arid western states and rainwater harvesting mandates

The arid western states have been pioneers of compulsory rainwater harvesting. Rajasthan, Gujarat, and Maharashtra all introduced mandatory rooftop harvesting rules through municipal bye-laws in the early 2000s, although implementation has been uneven in smaller towns such as Udaipur and Rajkot. Maharashtra's 2009 Act, amended in 2014, provides for the declaration of critical and semi-critical zones, with mandatory recharge structures for buildings above a specified footprint.

Gujarat's approach combines regulation with institutional innovation. The Gujarat Water Resources Regulatory Authority, established in 2004, has powers to set tariffs and adjudicate disputes. It also runs a benchmarking exercise that compares district-level water use efficiency, an approach that resonates with Australia's National Water Initiative and the work of the Murray-Darling Basin Authority in Canberra.

Rajasthan's 1999 Act, by contrast, focuses on notification. The government identifies over-exploited blocks and restricts new borewells through periodic gazette notifications, leaving the rest of the state relatively unrestricted. Critics argue that this binary approach fails to recognise the gradual decline seen in transitional areas such as Ajmer and Pali, where water tables have dropped steadily without triggering formal controls.

Trends, gaps, and the road ahead

Across the country, three trends are reshaping how groundwater is governed. The first is the gradual acceptance of aquifers as a unit of management rather than individual boreholes. State authorities are beginning to publish aquifer-level data and to require consent before drilling in shared recharge zones. The second is the digitisation of registration, with states such as Andhra Pradesh and Telangana launching online portals that allow farmers to apply for borewell permits from a phone.

The third, and most challenging, is the integration of groundwater with surface water and land-use planning. The Australian experience with the Great Artesian Basin offers a useful comparator: by combining licensing, monitoring, and infrastructure investment, Australia has slowed the decline of a transboundary resource shared across multiple jurisdictions. India is beginning to explore similar integrated models through the Jal Jeevan Mission and the Atal Bhujal Yojana.

Reforms in the pipeline include the long-pending amendments to the Easement Act, the expansion of the Model Bill framework to address climate adaptation, and stronger judicial oversight through the National Green Tribunal. Each of these will shape how the next decade of groundwater governance unfolds, and how the rights of farmers, industries, and communities are reconciled with the need to protect a finite resource.

Visit the official NAQUIM website to explore the interactive maps, download aquifer information reports for your region, and access the full library of publications that support sustainable groundwater management across India. Researchers, policy professionals, and citizens alike can use the portal to track seasonal water-level changes, compare block-wise stress categories, and stay updated on regulatory developments that affect drinking water, irrigation, and industry.