🏛️ Polity & GovernanceMAINS · GS3.15 · GS2.9

Dam safety framework anchors ageing-dam rehabilitation

How the Dam Safety Act, 2021, the NCDS apex body and the DRIP programme together hold up India's ageing reservoir stock.

What happened

The Ministry of Jal Shakti issued a consolidated backgrounder on India's dam-safety architecture, tracking the progress of the Dam Safety Act, 2021 four years after it came into force.
It places on record that the National Committee on Dam Safety (NCDS), the apex policy body created by the Act, has now held eleven meetings since its February 2022 constitution.
All 6,628 specified dams are registered on the digital DHARMA platform; Rapid Risk Screening has been completed for 5,553 of them and roughly 13,000 inspections are carried out annually.
On the construction-and-repair side, the Dam Rehabilitation and Improvement Project (DRIP) Phase II & III — a ₹10,211 crore effort covering 736 dams across 19 States — is the operational vehicle for fixing distressed structures.
The note frames the larger problem it addresses: India has the world's third-largest stock of large dams, and about a quarter of them are now more than half a century old.

Background & context

India ranks third in the world in number of large dams, after China and the United States, with 6,628 specified dams — of which 6,545 are operational and 83 are under construction, holding a gross storage of roughly 330 billion cubic metres. These structures are the backbone of irrigation, drinking-water supply, hydropower and flood moderation, but the portfolio is ageing: about 26% (1,681 dams) are over 50 years old, including 291 that are over 100 years old, while about 42% are in the 25–50-year band. India's oldest, the Kallanai (Grand Anicut) across the Cauvery in Tamil Nadu, has functioned for nearly 2,000 years. Ownership is overwhelmingly with the States — about 98.5% (6,448 dams) are State-owned, with central public-sector undertakings holding 49, private parties 36 and the Central Government 12. Maharashtra has the most specified dams, followed by Madhya Pradesh, Gujarat, Chhattisgarh, Rajasthan, Karnataka and Odisha.

For decades dam safety in India ran on advisories rather than law. The Central Water Commission's standing Dam Safety Organisation issued guidelines, but States — which own almost every dam — were under no binding statutory duty to inspect or repair them, and a dam on an inter-State river could fall outside the jurisdiction of the State where it physically sat. The legislative remedy travelled a long road: a Dam Safety Bill was first introduced in 2010, lapsed, was reintroduced, passed the Lok Sabha in 2019 and finally cleared Parliament in December 2021 to become the Dam Safety Act, 2021. Because water is a State subject, Parliament invoked Article 252 (States of Andhra Pradesh and West Bengal had passed enabling resolutions) read with the Union's power over inter-State rivers, allowing a uniform national law to apply across States that adopt it. The current backgrounder is the Ministry's periodic stock-take of how that institutional machinery is performing.

The Act's design deliberately separates four functions so that no single body both sets and polices its own standards. At the top, the NCDS is the standard-setter — it evolves policy and recommends regulations and is chaired by the Chairman of the Central Water Commission, giving it the country's deepest reservoir of dam-engineering expertise. Below it, the NDSA is the enforcement and dispute-resolution arm, with teeth the older guideline regime never had: it can step in directly where a State fails to act, and it serves as the safety organisation of last resort for the awkward cross-jurisdiction cases — a dam built by one State inside another, or one operated by a central agency. The two State-level tiers then mirror this split within each State, the SCDS overseeing policy and the SDSO doing the on-the-ground surveillance and inspection. This is the same regulator-versus-policy-maker separation seen in other recent Indian statutory regimes, and it is what makes the Act a governance reform and not merely an engineering manual.

For Prelims

Statute: Dam Safety Act, 2021 — came into force on 30 December 2021; administered by the Ministry of Jal Shakti, Department of Water Resources, River Development & Ganga Rejuvenation.
What it covers — a "specified dam": more than 15 metres in height, OR between 10 and 15 metres if it satisfies prescribed technical criteria (such as reservoir capacity, spillway design or seismic zone). Smaller dams fall outside the Act.
Four-tier institutional mechanism (the heart of the Act): two national bodies plus two State bodies.
1. NCDS — National Committee on Dam Safety: the apex policy body; frames dam-safety policies and recommends uniform national standards and regulations. Constituted February 2022; eleven meetings held.
2. NDSA — National Dam Safety Authority: the national regulator / implementing arm; resolves State-to-State disputes, oversees SDSOs, and acts as the State Dam Safety Organisation for dams owned by one State but lying in another or run by a central body.
3. SCDS — State Committee on Dam Safety, at the State level (policy/oversight within a State).
4. SDSO — State Dam Safety Organisation, the field arm that surveys, inspects and monitors dams in the State. All 31 dam-owning States have constituted an SDSO.
Penalties (Chapter X): offences carry imprisonment up to one year, rising to up to two years where the violation results in loss of life — making non-compliance a criminal, not merely administrative, matter.
DHARMA: the Dam Health and Rehabilitation Monitoring Application — the digital asset register; all 6,628 dams are registered on it. Introduced under DRIP Phase I.
Achievements logged: ~13,000 inspections annually; Rapid Risk Screening completed for 5,553 dams; 20 regulations published; a National Centre for Earthquake Safety of Dams at MNIT Jaipur; Centres of Excellence at IIT Roorkee and IISc Bengaluru; Early Warning Systems being deployed.
DRIP lineage: Phase I (2012–2021, World Bank support) covered 223 dams across seven States (Jharkhand, Karnataka, Kerala, Madhya Pradesh, Odisha, Tamil Nadu, Uttarakhand) and gave India DHARMA. Phase II & III were operationalised in October 2021, co-financed by the World Bank and the Asian Infrastructure Investment Bank (AIIB); total outlay ₹10,211 crore (Phase II ₹5,107 cr; Phase III ₹5,104 cr), covering 736 dams across 19 States and three central agencies — the Central Water Commission (CWC), Bhakra Beas Management Board (BBMB) and Damodar Valley Corporation (DVC).

What it is NOT: the NCDS and NDSA are statutory bodies created by the Dam Safety Act, 2021 — not constitutional bodies, and they are distinct from the Central Water Commission (an older attached office that advises on water resources). The NCDS only frames policy; it is the NDSA that regulates and implements — do not swap their roles. The Act regulates dam safety; it does not allocate or adjudicate the sharing of river waters (that is the domain of Inter-State River Water Disputes Tribunals under the 1956 Act). DRIP is a rehabilitation programme for existing dams, not a scheme to build new ones.

For UPSC: The Dam Safety Act, 2021 builds a two-tier national + two-tier State structure — NCDS (apex policy) → NDSA (regulator) → SCDS → SDSO. A "specified dam" is >15 m, or 10–15 m with prescribed criteria. India is 3rd globally with 6,628 specified dams; DRIP (Phases II & III, ₹10,211 cr, 736 dams) plus DHARMA do the rehabilitation; the bodies are statutory, not constitutional.

Why it matters

The numbers explain the urgency. With more than a quarter of India's dams past 50 years and nearly 300 past a century, the country sits on an ageing-infrastructure liability whose failure mode is catastrophic — a single breach can drown downstream towns within minutes, as the 1979 Machchhu (Morbi) dam disaster in Gujarat showed. Before 2021, the safety of these structures rested on non-binding guidelines and fragmented State practice, with no national regulator, no uniform standard and no legal accountability when an owner skipped inspections. The Act converts dam safety from a discretionary engineering courtesy into a statutory obligation, backed by criminal penalties and a standing institutional chain that runs from national policy down to a field organisation in every dam-owning State. Pairing the regulatory law (the Act and its NCDS/NDSA machinery) with a financed repair pipeline (DRIP) and a live digital register (DHARMA) is the design logic: one arm sets and enforces standards, the second funds the physical fixes, and the third tracks every dam's health in real time so that scarce rehabilitation money flows to the structures Rapid Risk Screening flags as most distressed.

For Mains

Anchor

A disaster-management or governance answer on dam safety can be built directly around the Dam Safety Act, 2021 and its four-tier NCDS–NDSA–SCDS–SDSO mechanism as the central institutional reform.

Data

Quantify India's exposure: 6,628 specified dams (3rd globally), ~26% over 50 years old and 291 over 100 years; DRIP II & III at ₹10,211 crore covering 736 dams; 5,553 dams Rapid-Risk-Screened.

Example

Use DHARMA and the National Centre for Earthquake Safety of Dams as a concrete instance of technology-led, preventive disaster-risk reduction rather than reactive relief.

Problematisation

The federal tension is the answer's critical edge: water is a State subject and States own 98.5% of dams, so a Union law leaning on Article 252 and inter-State-river powers raises questions of federal consent, capacity of newly created SDSOs and the cost burden of compliance.

Way forward

Argue for adequate funding and technical staffing of State SDSOs, faster Rapid Risk Screening follow-through into actual repairs, and integration of Early Warning Systems with district disaster-management plans.

Position

The Government's stance: a uniform, legally binding, technology-monitored safety regime with criminal accountability is the appropriate response to an ageing dam portfolio of national scale.

Deploys into: disaster management and risk reduction (GS3.15); statutory/regulatory bodies and Centre–State governance of a State subject (GS2.9 / federalism); water-resource infrastructure and its maintenance.

PIB Backgrounder · Ministry of Jal Shakti · 2026-05-15 · PRID 2261335 · PIB source ↗

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