Heatwaves and Lightning Are Now National Disasters in India
From Twelve to Fourteen
India's list of nationally notified disasters has grown from twelve to fourteen. The Ministry of Home Affairs has told the Lok Sabha that heatwaves and lightning have been added to the operational guidelines governing the State Disaster Response Fund (SDRF) and the National Disaster Response Fund (NDRF), effective for the 2026-31 award period. They join cyclone, drought, earthquake, fire, flood, tsunami, hailstorm, landslide, avalanche, cloudburst, pest attack, and frost or cold wave on the list that determines which hazards states can fund through the country's primary disaster relief architecture.
4,853 cases / 20 deaths
reported nationally between 1 March and 26 July 2026 : against a historical NCRB average of roughly 760 heat deaths a year
The Mechanics: What Actually Changes
Under the Disaster Management Act, 2005, being a “notified disaster” is not just symbolic. It determines whether a state can draw directly on SDRF and NDRF resources for relief, or whether it has to fund response through the more limited, discretionary route available for locally significant but nationally unrecognised hazards. Before this change, states could spend up to 10% of their SDRF allocation on disasters outside the national list. That flexibility existed precisely because heat and lightning had no formal place on it.
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The financial commitment behind the decision is substantial. The 16th Finance Commission, whose report reached the President on 17 November 2025, recommended a combined corpus of approximately Rs 2.04 lakh crore for the SDRF and the State Disaster Mitigation Fund (SDMF) over the five-year award period, split 80:20 between relief and mitigation. The mitigation component is arguably the more consequential half of that split: early warning systems, Heat Action Plans, cooling infrastructure, and lightning detection networks all draw on it, and until now heatwaves and lightning had a comparatively weak claim on that funding stream.
How We Got Here
The reversal is notable because it did not have to happen this way. The 15th Finance Commission examined the same request during its 2020 review and did not find sufficient merit to expand the disaster list. The 16th Commission reached the opposite conclusion, citing rising frequency, intensity, and mortality, and noting that these hazards “often exceed the coping capacity of affected communities.”
Even after the Commission's recommendation, formal government acceptance was slow. Finance Minister Nirmala Sitharaman accepted several 16th Finance Commission recommendations in the February 2026 budget. The Ministry of Home Affairs officially included heatwaves and lightning in the list of notified natural calamities under the operational guidelines of the State Disaster Response Fund (SDRF) and National Disaster Response Fund (NDRF) for 2026–2031.
Why Heatwaves and Lightning, and Why Now
Lightning rarely receives the public attention given to a cyclone, but by several assessments it kills more people in India annually than any other natural hazard: a sudden, geographically scattered phenomenon spread across thousands of individual strikes rather than concentrated in a single dramatic event. Heat presents the opposite challenge. It is slow-moving, diffuse across large areas, and structurally difficult to attribute with precision. The India Meteorological Department declares a heatwave when daytime temperatures cross a threshold, broadly 40°C in the plains and lower in hilly regions, and depart sharply, by 4.5°C or more, from what is normal for that place and time of year. That definition works reasonably well as a trigger for public warnings. It works far less well as an instrument for determining who qualifies for compensation.
Pros and Cons of the Decision
Advantages
- ✓States gain access to the main 80% SDRF allocation for heat and lightning response, removing the funding uncertainty created by the previous 10% discretionary cap and the need to separately notify these hazards at the state level.
- ✓The mitigation component of the new funding (SDMF and NDMF) can be directed toward early warning systems, Heat Action Plans, urban cooling infrastructure, and lightning detection networks, shifting resources toward prevention rather than relief alone.
- ✓National notification replaces a patchwork of eleven state-level declarations with a uniform standard, reducing the disparity between residents of states that had already acted and those that had not.
- ✓The decision brings institutional recognition in line with actual mortality burden. Heat and lightning kill more people in most years than several hazards that have long been on the notified list, including cyclones.
- ✓It creates a five-year, predictable funding window (2026-31) rather than year-to-year ad hoc allocation, which gives state disaster management authorities room to plan capacity building rather than respond reactively each season.
- ✓It opens a path toward a formal compensation architecture for affected families, a demand that public health researchers and labour advocates for outdoor and informal workers have raised for years.
Concerns and Limitations
- ✗Compensation is likely to remain tied to medically certified heat-related deaths, and current certification practice is estimated to capture only a fraction of actual heat mortality. The reform could end up excluding most of the people it was designed to help.
- ✗Attribution is structurally harder for heat than for hazards like cyclones or floods, which have a clear spatial and temporal footprint. A death on a day when the IMD has not formally declared a heatwave risks falling outside the compensation framework entirely, even if the underlying cause was extreme heat.
- ✗Tying compensation to official certification creates a possible perverse incentive: if certifying a death as heat-related generates a financial and administrative obligation, under-certification could worsen rather than improve, a pattern observed with COVID-19 mortality reporting.
- ✗Drought has been a notified national disaster for decades, and disputes over declaration criteria and disbursement speed persist. There is no clear reason to expect heat and lightning will be exempt from similar friction.
- ✗The Disaster Risk Index, the formula the Finance Commission uses to weight and allocate SDRF and SDMF funds across states, has not yet been revised to properly account for heat and lightning exposure. Without that update, allocations could continue to favour states with dominant cyclone or flood risk under the older weighting.
- ✗Effective implementation requires trained certifying medical officers and administrative capacity at the district and primary health centre level, and that capacity build-out has not visibly kept pace with the policy announcement.
- ✗Because heat is a population-wide, geographically diffuse hazard rather than a spatially contained one, the number of technically eligible claims could be far larger than for any previously notified disaster, and the guidelines have not yet addressed the fiscal and administrative implications of that scale.
Where Implementation Will Be Tested
Notification changes the financing architecture. It does very little, on its own, for the administrative machinery that determines whether relief actually reaches an affected family, and that is where the real test of this policy will play out.
Start with attribution. India counts a death as heatstroke-related only when it is medically certified as caused by direct sun exposure. Analysts at IndiaSpend have estimated this captures perhaps a tenth of the real toll, excluding indirect deaths among people who suffer heat stress inside poorly ventilated homes, or whose existing conditions are pushed past a critical point by ambient heat but whose cause of death is recorded as cardiac arrest or another proximate condition. Nihal Ranjit at the Indian Institute for Human Settlements has raised a related question: what happens when a single day of extreme heat causes deaths in a district where the IMD has not formally declared a heatwave? Under a framework built around discrete “disaster days,” those deaths risk falling outside the compensation net regardless of their cause. His proposed alternative, cumulative-exposure triggers rather than single-day declarations, has not yet been incorporated into the guidelines.
There is also a structural risk that the incentives work against the policy's intent. If compensation depends on formal certification and certification capacity at the district and primary health centre level remains limited, the result could resemble the undercounting seen in COVID-19 mortality data, where the administrative burden of certifying a death quietly discouraged accurate certification. Abhiyant Tiwari at NRDC India takes a more optimistic view, arguing that training and sensitising the officials responsible for certification, funded by the very mitigation resources this notification unlocks, is a solvable problem. That may be true, but it is a multi-year capacity-building exercise rather than something a guideline amendment accomplishes on its own, and it has not yet begun at any meaningful scale.
Drought offers a useful cautionary comparison. It has been a notified national disaster for decades, and states still contest the Centre over it regularly. In 2023, Karnataka's chief minister formally asked the Union government to revisit the criteria used to declare a drought, arguing they did not reflect ground conditions and were delaying relief to farmers. Being on the notified list does not end the argument over eligibility and disbursement speed. It shifts the argument from whether a hazard counts at all to whether a specific case meets the threshold, which is real progress, but not the resolution that headline coverage of this decision often implies.
What to Watch Next
Three developments will indicate whether this notification is functioning as intended, and none of them are visible in the notification itself.
The first is whether the Disaster Risk Index, the formula used to allocate SDRF and SDMF funds across states, is revised to properly weight heat and lightning exposure, or whether states with dominant cyclone or flood risk continue to receive a disproportionate share of funding under an index built around older hazard categories. The second is whether the National Disaster Management Authority updates its existing heatwave guidelines and Heat Action Plan template to incorporate the compensation and certification mechanics this notification now requires, rather than leaving states to work out the details independently, as they did before this change. The third, and the one least likely to attract media attention, is whether the certification and reporting chain at the primary health centre and district level receives the training and staffing this reform depends on. Several states already adjust school timings and issue early closures during peak heat as part of existing Heat Action Plans, so the operational infrastructure for responding to heat exists in some form. Extending that infrastructure to reliably capture who died, where, and why is a considerably harder problem, and one this notification has not yet solved.
Conclusion
This is a genuine policy achievement, five years in the making, and it corrects a real gap: heat and lightning have killed more people than several longer-recognised disasters in most recent years, while receiving a fraction of the institutional attention and funding. But notification is the more tractable half of disaster governance. The harder half is what happens at a primary health centre in the middle of a heatwave, when a field-level medical officer decides whether to write “heatstroke” on a certificate that determines whether a family receives compensation. That decision will not appear in any Finance Commission report. It is where this policy will actually be tested.
Further reading: 16th Finance Commission report (fincomindia.nic.in); Ministry of Home Affairs reply to Lok Sabha, August 2026; IndiaSpend, “To Unlock Heatwave Disaster Funds, India Needs To Fix The Fineprint” (May 2026); NDMA Heat Wave guidelines booklet.