Why in the News?
In 2025, the Southwest Monsoon, which plays a vital role in India’s farming economy, brought heavy and destructive rains. Instead of simply starting the farming season, it has caused widespread damage across the northeastern states.
Why is the northeastern region particularly vulnerable to monsoon-related disasters?
- Geographical Terrain and River Systems: The Northeast has a complex topography of steep hills and fast-flowing rivers like the Brahmaputra and Barak. These rivers often overflow during monsoon, causing floods and erosion. Eg: In Assam, over 10 major rivers flowed above danger level in June 2025, affecting over 3 lakh people across 19 districts.
- High and Prolonged Rainfall: The region receives one of the highest average monsoon rainfalls in India, making even a “below normal” monsoondestructive. Eg: Despite IMD predicting lower-than-normal rainfall, Assam, Tripura, and Sikkim faced flash floods and landslidesin May–June 2025.
- Dual Monsoon Exposure and Fragile Ecology: The region experiences both the southwest monsoon (June–September) and a retreating monsoon (October–December), increasing disaster exposure. The fragile ecology, including deforestation and slope instability, worsens risks. Eg: In North Sikkim, landslides in early June 2025 marooned 1,500 tourists and blocked arterial roads due to incessant rain.
What is the Dual Monsoon Pattern?
Dual Monsoon Pattern refers to the occurrence of two distinct monsoon phases in a year that affect a region, particularly the Northeastern States of India. These are:
- Southwest Monsoon (June to September):
This is the primary monsoon season for most of India. The Bay of Bengal branch of the southwest monsoon brings heavy rainfall to the Northeastern States like Assam, Meghalaya, and Arunachal Pradesh.
- Retreating/Post-Monsoon (October to December):
This secondary phase brings additional rainfall, especially to Nagaland, Manipur, Mizoram, and Tripura (NMMT region). This is often accompanied by cyclonic storms originating from the Bay of Bengal.
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How does the dual monsoon pattern affect the disaster preparedness of northeastern States?
- Extended Vulnerability Period: The presence of both the southwest monsoon (June–September) and the retreating/post-monsoon (October–December) leads to a prolonged rainy season, increasing the duration for which states must stay alert and prepared. Eg: In 2023, flash floods affected parts of Meghalaya in both July and November, stretching disaster response capacities.
- Recurring Strain on Resources: The back-to-back monsoon cycles put continuous pressure on relief infrastructure, emergency services, and budgetary resources, often without adequate recovery time between events. Eg: In Assam, flood shelters and boats used during June floods had to be reactivated again during October rains, delaying repairs and replenishment.
- Challenges in Long-term Planning: The dual monsoon system makes it harder to plan and execute infrastructure repair, agricultural recovery, and resettlement efforts, as damage may recur within months. Eg: In Arunachal Pradesh, roads repaired after July landslides were again washed away during October rains in 2022, disrupting connectivity repeatedly.
Why has infrastructure development lagged in the northeastern States compared to the rest of India?
- Challenging Geographical Terrain: The region is dominated by mountainous landscapes, dense forests, and seismic zones, which make construction of roads, bridges, and railways technically difficult and cost-intensive. Eg: In Sikkim, frequent landslides and narrow mountain roads delay road-widening and highway projects.
- Security and Strategic Concerns: The presence of international borders with countries like China, Myanmar, and Bangladesh and historical instances of insurgency have led to delays in project execution due to security concerns and administrative restrictions. Eg: The construction of the India-Myanmar-Thailand Trilateral Highway through Manipur has faced repeated delays due to local unrest and law-and-order issues.
- Low Political and Economic Prioritisation: Compared to other regions, the Northeast has received less investment in infrastructure due to lower population density, limited industrial base, and less political influence at the national level. Eg: States like Nagaland and Mizoram have limited railway connectivity even today, unlike the rapid expansion seen in western and southern India.
What are the steps taken by the Indian government?
- Strengthened Disaster Response and Early Warnings: The government has deployed NDRF units across the Northeast and enhanced IMD’s region-specific alerts for floods and landslides in states like Assam, Sikkim, and Arunachal Pradesh.
- Infrastructure Development in Vulnerable Areas: Schemes like NESIDS support critical infrastructure such as flood protection embankments and all-weather roads in remote regions of Manipur and Mizoram.
- Integration into National Disaster Management Frameworks: NDMA conducts capacity building, mock drills, and implements region-specific guidelines for urban flooding and landslide risk in cities like Gangtok and Guwahati.
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What long-term measures are needed to ensure sustainable disaster management in the Northeast? (Way forward)
- Region-Specific Infrastructure Planning and Investment: Develop climate-resilient infrastructure suited to the region’s fragile ecology, such as landslide-resistant roads, flood-resistant housing, and robust early warning systems. Eg: The installation of a real-time flood monitoring system in the Brahmaputra basin has improved early evacuation in parts of Assam.
- Integrated Inter-State and Central Coordination Mechanism: Establish a permanent regional disaster coordination body with participation from all Northeast states and the Centre to plan, share resources, and respond collectively to disasters. Eg: A joint task force involving Assam, Arunachal Pradesh, and Meghalaya could improve flood response across shared river systems like the Barak and Brahmaputra.
Mains PYQ:
[UPSC 2024] Flooding in urban areas is an emerging climate-induced disaster. Discuss the causes of this disaster. Mention the features of two such major floods in the last two decades in India. Describe the policies and frameworks in India that aim at tackling such floods.
Linkage: The Bay of Bengal branch of the monsoon reaches the northeastern States first. These areas usually get a lot of rain during the monsoon, even in years when rainfall is lower than normal. Because of this, the region is naturally more prone to problems like flooding, which often comes with such heavy rain.
