🗞️ Why in News Union Minister of State for Home Affairs Nityanand Rai informed the Lok Sabha in a written reply on August 4, 2026 that heatwaves and lightning have been added to the list of notified calamities under the operational guidelines of the State Disaster Response Fund and the National Disaster Response Fund, taking the list from twelve to fourteen.
The Two Funds
| Fund | Constituted under | Purpose | Contribution |
|---|---|---|---|
| SDRF (State Disaster Response Fund) | Section 48, Disaster Management Act, 2005 | The primary fund for immediate relief in a notified calamity | Centre 75 per cent for general states, 90 per cent for North-Eastern and Himalayan states; balance from the state |
| NDRF (National Disaster Response Fund) | Section 46, Disaster Management Act, 2005 | Supplements SDRF when a calamity of severe nature exhausts state resources | Wholly from the Centre |
The Finance Commission recommends the size of the SDRF corpus for each state for its award period, which is why a change of this kind originates in a Finance Commission recommendation rather than in a ministry circular.
What Changed
The notified calamity list now reads: cyclone, drought, earthquake, flood, tsunami, avalanche, cloudburst, landslide, hailstorm, fire, frost and cold wave, pest attack, heatwave and lightning.
The change follows a recommendation of the Sixteenth Finance Commission, whose report was submitted on November 17, 2025, and whose award period is 2026-31. The Commission cited rising frequency, intensity and mortality linked to climate change.
The Distinction That Carries the Weight
Before this change, heatwave relief was not impossible. It was discretionary and capped.
- A notified calamity attracts SDRF and NDRF assistance as of right, under the operational guidelines, as a first charge on the fund.
- A local disaster is one a state may declare within its own jurisdiction, spending up to 10 per cent of its annual SDRF allocation on it, at its discretion.
Heatwave sat in the second category. A state that wanted to fund heat relief had to do it out of a capped discretionary window that also had to cover every other locally declared disaster, and it competed against politically more visible events. Notification moves heat and lightning out of that window into first-charge status.
This “notified calamity versus local disaster” distinction is the single most examinable point in the topic.
Why Heat Is Different From Every Other Item on the List
Every other notified calamity is sudden, visible and spatially bounded. A cyclone has a landfall point and a time. A flood has an extent that can be mapped. Damage is countable: houses destroyed, hectares inundated, lives lost in an identifiable event.
Heat has none of these properties.
It kills slowly and indirectly. Heat stress precipitates cardiac events, renal failure and stroke. The death certificate records the cardiac event. Heat appears nowhere in the record. Official heat mortality counts are therefore almost certainly a severe undercount: the context figure of at least 20 heatstroke deaths and 4,853 heatstroke cases between March 1 and July 26, 2026 reflects what was coded as heatstroke, not what heat caused.
It kills selectively. Mortality concentrates among outdoor informal workers, the elderly, and residents of dense settlements with high thermal mass and no cooling. These are the groups least likely to have documentation, a death certificate stating a cause, or an established claim to compensation.
It is not spatially bounded. A heatwave covers several states for weeks. There is no damage boundary to survey.
The Consequence: Notification Is Necessary but Not Sufficient
The money will now exist as a first charge. Whether it moves depends on three things the notification does not itself supply.
A cause-of-death attribution protocol. Without a standardised method for attributing a cardiac or renal death to heat exposure, there is no defensible basis on which a district administration can pay compensation. Relief funds require an enumerated beneficiary.
A declaration threshold that reflects humidity. The IMD’s heatwave criteria are built on dry-bulb temperature departures from normal. Human heat mortality is driven by the combination of heat and humidity, because evaporative cooling through sweat fails when ambient humidity is high. A humid 38 degrees kills more effectively than a dry 44. Wet-bulb globe temperature thresholds capture this; dry-bulb thresholds do not, and a coastal heat emergency can therefore fail to meet a declaration threshold that an inland one clears.
Compensation rules that reach informal workers. Relief disbursement assumes documentation: identity, residence, and a certified cause. The population most exposed is the population least able to produce these.
The way forward that an answer should propose: wet-bulb globe temperature thresholds for declaration, a standardised heat-attribution protocol for mortality, and statutory status for Heat Action Plans under the Disaster Management Act, which currently remain advisory documents prepared by cities and states without binding force.
UPSC Relevance
GS Paper 3: Disaster and disaster management; conservation, environmental pollution and degradation; climate change and its impacts.
GS Paper 2: Finance Commission and centre-state fiscal relations; devolution of resources; government policies and interventions; statutory bodies.
Prelims focus: List expanded from 12 to 14; SDRF under Section 48 and NDRF under Section 46 of the Disaster Management Act, 2005; Centre’s SDRF share of 75 and 90 per cent; the 10 per cent local-disaster window; Sixteenth Finance Commission report submitted November 17, 2025, award period 2026-31, chaired by Arvind Panagariya; Article 280.
Mains angle: “India’s disaster relief architecture was built for events that are sudden, visible and spatially bounded, and heat is none of those things.” Examine the adequacy of notifying heatwave as a calamity, and suggest the institutional changes required for relief to actually reach heat-affected populations.
📌 Facts Corner, Knowledgepedia
Notified Calamities:
- List expanded from 12 to 14, adding heatwave and lightning
- Full list: cyclone, drought, earthquake, flood, tsunami, avalanche, cloudburst, landslide, hailstorm, fire, frost and cold wave, pest attack, heatwave, lightning
- Announced by MoS Home Affairs Nityanand Rai in a written reply to the Lok Sabha, August 4, 2026
- Context data: at least 20 heatstroke deaths and 4,853 heatstroke cases between March 1 and July 26, 2026
SDRF and NDRF:
- SDRF: Section 48, Disaster Management Act, 2005; Centre contributes 75 per cent (general states) and 90 per cent (North-Eastern and Himalayan states)
- NDRF: Section 46, Disaster Management Act, 2005; supplements SDRF for a calamity of severe nature
- Notified calamity = assistance as of right; local disaster = state discretion, capped at 10 per cent of annual SDRF allocation
- Note the acronym clash: NDRF here is the National Disaster Response Fund, distinct from the National Disaster Response Force, the armed force constituted under Section 44 of the same Act
Sixteenth Finance Commission:
- Report submitted November 17, 2025; award period 2026-31
- Chaired by Arvind Panagariya
- Constituted under Article 280 of the Constitution, every fifth year or earlier
- Recommended the addition on grounds of rising frequency, intensity and climate-linked mortality
Heat Concepts:
- Dry-bulb temperature: air temperature measured by a standard thermometer, the basis of current IMD heatwave criteria
- Wet-bulb globe temperature: composite index reflecting temperature, humidity, wind and radiation, better correlated with human heat mortality
- Evaporative cooling through perspiration fails as ambient humidity rises, which is why humid heat is more lethal at lower temperatures
- Heat Action Plans are currently advisory, not statutory; Ahmedabad adopted South Asia’s first in 2013
Other Relevant Facts:
- The Disaster Management Act, 2005 also constitutes the NDMA (chaired by the Prime Minister), SDMAs (chaired by Chief Ministers) and the NIDM
- Disaster management is not a specific entry in any of the three Lists; the Act was enacted using Entry 23 of the Concurrent List (social security and social insurance)
- Lightning is among the largest causes of accidental death by natural causes in India as recorded by the NCRB
Sources: PIB, Ministry of Home Affairs, Down To Earth, NDMA
Source: From Twelve to Fourteen: Heatwaves and Lightning Become Notified Calamities — Ujiyari.com | Free UPSC & State PCS Current Affairs
