WHEN FLOODS BECOME FORESEEABLE: RETHINKING STATE RESPONSIBILITY FOR ASSAM’S 2026 FLOODS

INTRODUCTION

Each monsoon, Assam braces for flooding, treating it as a seasonal inevitability. But the floods witnessed by Upper Assam in July-August 2026 really hit home. The rainfall was heavy, and the water level was high enough to cover quite wide areas. It was said to be the worst flood of the region over the last several decades. By early August, at least 99 people were dead and more than half a million affected across the region. By August 10^th, the confirmed toll had risen to 104 in Assam with a further 14 deaths reported in the neighboring state of Nagaland. It is hard not to wonder, though, when heavy rainfall meets years of unchecked mining, poor infrastructure, and neglected embankments, can we really call the destruction that follows purely “natural”? The rain itself may be beyond anyone’s control, but what happens after the rain falls, often, is not.

This piece argues that the catastrophic impact of the recent floods in Assam cannot be attributed to heavy rainfall alone but must be understood against the State’s longstanding regulatory and infrastructural choices and the failure to act, which have amplified the State’s vulnerability to floods.

UNDERSTANDING WHY THE 2026 UPPER ASSAM FLOODS BECOME CATASTROPHIC

Assam sits in a broad, alluvial valley ringed by mountains and hills on three sides. Every monsoon, intense runoff from the Patkai, Naga, and Eastern Himalayan ranges pours into Assam’s rivers, and researchers studying the 2026 event note that, Upper Assam’s low-lying basin receives especially intense runoff from the neighboring Naga and Arunachal hills. The Floods of 2026 were triggered by successive spells of rainfall, particularly in mid-July, which inundated 16 districts and 794 villages. Although the rainfall was intense, scientific assessments found that the event was not statistically exceptional, suggesting that the scale of the disaster was driven less by unprecedented rainfall than by Assam’s existing vulnerability.

The decades of deforestation, unplanned urbanization, mining, wetland loss and inadequate drainage have reduced the landscape’s capacity to absorb water. Again, Assam’s vulnerability has been further aggravated by its ageing flood-protection Infrastructure. Since the 1954 National Policy on Floods, Assam has constructed almost 4,900 km of embankment along the Brahmaputra and its tributaries. Due to poor maintenance, during the recent floods, repeated breaches across embankments have expanded inundation beyond the Brahmaputra’s natural floodplain. These reasons combined made this heavy monsoon a disaster. The extent of damage was not as much a function of the intensity of the rain as of the structural vulnerability and chronic exposure to rain; the scale of damage was driven less by how extreme the rain was and more by chronic exposure and structural vulnerability.

FORESEEABILITY CHANGES STATE’S RESPONSIBILITY

Given this history, the catastrophic scale of the 2026 floods cannot be perceived as an entirely unforeseeable natural event. What is increasingly difficult to justify is the extent to which known environmental and infrastructural vulnerabilities were allowed to persist. This concern has a clear constitutional aspect to it. Article 21 of the Constitution of India protects the right to life, which also extends to include the right to a safe and healthy environment. In M.K. Ranjitsinh v. Union of India (2024),[1] the Hon’ble Supreme Court expressly recognized the constitutional “right to be free from the adverse effects of climate change” under Articles 14 and 21, particularly acknowledging flooding among the climate-related harms capable of affecting the right to life, and that environmental harms disproportionately affect vulnerable communities. By the same reasoning, exposure to “growing” flood risk, where the State has had long notice of the risk and the capacity to lessen it, is implicated by the same constitutional guarantee.

The floods also expose a deeper issue of regulatory failure. The issue is particularly significant in the case of the Dikhow River, which had been a cause of concern to the Gauhati High Court years before the 2026 floods; concern over illegal mining had already taken place. In Debabrata Saikia v. Union of India & Ors. (PIL no. 62/2019, the petitioner, who is a former leader of the opposition, raised concerns regarding the illegal mining activities and riverbank erosion. The Hon’ble Gauhati High Court was presented with material recording on soil erosion and the continued threat of illegal mining, and it ultimately directed the creation of a Mines and Mineral Task Force and measures to safeguard the ecosystem of the river. This is an important fact as it establishes that the environmental risks associated with the unregulated

extraction were known to the State government. Therefore, the allegation that came up by activists and aggrieved recently about rampant sand, stone and coal mining must be understood against the history of this prior notice. The question therefore is not whether mining caused the floods but whether the State took reasonable preventive measures after being placed on notice of an identifiable environmental risk. This brings the discussion of the precautionary principle in this regard. In Vellore Citizens’ Welfare Forum v. Union of India[2], the Hon’ble Supreme Court recognised this principle as a cornerstone of Indian environmental law. It guided the authorities to anticipate and prevent environmental degradation rather than respond only after serious harm occurs.

Again, another significant Principle, the Public Trust Doctrine as affirmed in the case of M.C Mehta v. Kamal Nath [3]underpin that natural resources such as rivers and hills should be held and protected by the State in trust of the public; State responsibility cannot begin only after the water rises, where environmental degradation, flood vulnerability and regulatory failures are foreseeable, the State has a positive obligation to prevent avoidable harm to life and ecological security. The recurring and foreseeable flood, therefore, cannot be treated as purely “natural” events when state action contributes to this vulnerability. Assam must therefore move beyond only post-flood relief measures but towards preventive climate governance.

WAY FORWARD

The constitutional right to be protected from climate-induced harm must be understood alongside the State’s statutory obligations under the Disaster Management Act, 2005. Statutory institutional framework for prevention, mitigation, preparedness, response, rehabilitation and recovery. The National Disaster Management Authority’s National Disaster Management Guidelines: Management of Floods (2008) then expressly called for a shift “from the relief-centric and post-event efforts” towards proactive prevention and preparedness. The guidelines recommend scientific assessment of embankments, desilting and dredging, protection of drainage channels (natural), watershed afforestation and anti-erosion measures. Assam should positively implement these guidelines provided by the National Disaster Management Authority.

Along with this, Assam needs a stronger Early Warning Dissemination System (“EWDS”). Following the devastating 1999 cyclone, Odisha developed a multi-layered warning system using siren towers, SMS alerts and advanced evacuation mechanisms. Assam needs a similar last-mile communication system that reaches the common citizens; timely alerts through sirens, SMS and local networks can give communities crucial time to evacuate, secure property and protect their livelihoods.

Further, Assam needs an inter-state catchment restoration system- a joint ecological strategy with upstream states like Arunachal Pradesh and Nagaland. Joint effort among the states should focus on re-growing trees in the river’s floodplain regions. A single state cannot fix the damage that the flooding caused at the local level. Large-scale tree plantation campaigns in the upper catchment areas should be a combined effort of Assam, Nagaland, and Arunachal Pradesh. This also offers some level of protection to the riverbank areas at a lower section of the river. Increased vegetation can, in the longer run, stabilise soil, reduce soil erosion and slow surface runoff.

Most importantly, Illegal mining must be strictly controlled. Unregulated sand, stone and other kinds of mining can destabilize riverbanks and increase pressure on flood-control infrastructure. Continuous satellite and drone surveillance, combined with swift enforcement and penalties, can help detect and prevent illegal extraction.

Also, Assam needs to modernize its flood infrastructure. The embankments, which are ageing, should undergo regular structural audits and maintenance. Natural drainage channels and wetlands must be protected from encroachments. Flood resilience requires maintaining the systems that allow excess water to move safely, rather than relying solely on embankments to contain it. Along with this, Assam needs to strengthen flood-resilient housing, evacuation shelters, livelihood protection and, importantly, post-disaster rehabilitation for the communities living in areas which are repeatedly inundated.

CONCLUSION

When known risks are aggravated by illegal extraction, ecological degradation, neglected infrastructure, and inadequate warning systems, the resulting disaster becomes, in part, a question of governance. The constitutional recognition of climate-related rights, along with the State’s legal duties under disaster-management and environmental laws, calls for a transition from the paradigm of seeing floods as annual emergencies to one in which floods are predictable risks that require continuous prevention, adaptation, and accountability.

[1]M.K Ranjisinh v. Union of India 2024 INSC 280

[2] Vellore Citizens Welfare Forum v. Union of India, AIR 1996 SC 2715

[3] M.C. Mehta v. Kamal Nath, (2000) INSC 334