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Home » Blog » Sikkim Tunnel Collapse: 10 Workers Killed After Landslide at NHPC Teesta Stage VI Project
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Sikkim Tunnel Collapse: 10 Workers Killed After Landslide at NHPC Teesta Stage VI Project

Boyar Debbarma
By Boyar Debbarma Published July 22, 2026 4 Min Read
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A tunnel under construction at the NHPC Teesta Stage VI Hydroelectric Project in Samardung, Jholungey, Namchi district of Sikkim, collapsed after a sudden landslide, killing 10 workers. Rescue teams continue search operations as authorities fear the death toll could rise.

Contents
Key FactsTunnel Collapse Claims 10 Lives in SikkimLandslide Triggered the CollapseChief Minister Expresses GriefRescue Operations ContinueSafety Concerns HighlightedQuestion & AnswerLocation Context

Sikkim Chief Minister Prem Singh Tamang expressed grief over the tragedy and assured full support for rescue efforts and the affected families. The incident has once again highlighted the dangers faced by workers at infrastructure projects in the Himalayan region.

Read More: Nagaland Releases ₹70 Lakh Relief for Mon Flood Victims

Key Facts

  • Incident: Tunnel collapse following a landslide
  • Location: Samardung, Jholungey, Namchi district, Sikkim
  • Project: NHPC Teesta Stage VI Hydroelectric Project
  • Deaths Reported: 10 workers
  • Cause: Sudden landslide triggered the tunnel collapse
  • Response: Rescue and search operations are ongoing

Tunnel Collapse Claims 10 Lives in Sikkim

A devastating accident occurred in Namchi district, Sikkim, after a tunnel under construction collapsed at the NHPC Teesta Stage VI Hydroelectric Project. The collapse followed a sudden landslide, trapping workers inside the tunnel.

Officials confirmed that 10 workers lost their lives in the incident. Meanwhile, rescue teams continue intensive search operations because authorities fear more casualties could be discovered.

Landslide Triggered the Collapse

According to officials, a sudden landslide caused the tunnel to cave in at the project site in Samardung, Jholungey.

As a result, several workers became trapped beneath the debris. Emergency teams quickly reached the site and launched rescue efforts to search for survivors and recover those trapped inside.

Chief Minister Expresses Grief

Sikkim Chief Minister Prem Singh Tamang expressed deep sorrow over the loss of lives.

Furthermore, he assured that the state government is taking all necessary measures to support the ongoing rescue operations. He also promised assistance to the families affected by the tragedy.

Rescue Operations Continue

Rescue personnel remain at the site and continue search operations under challenging conditions.

Moreover, officials are closely monitoring the situation while coordinating with emergency response teams to ensure that rescue efforts continue without interruption.

Authorities have not ruled out the possibility of additional casualties, and they continue to assess the extent of the damage.

Safety Concerns Highlighted

The tragedy has once again drawn attention to the risks associated with infrastructure projects in the Himalayan region.

Heavy rainfall, unstable slopes, and frequent landslides often create hazardous conditions for workers involved in tunnel construction and hydropower development. Therefore, experts stress the importance of strict safety measures and continuous monitoring in such vulnerable areas.

Question & Answer

Q1. What happened in Sikkim?
Answer: A tunnel under construction collapsed after a landslide at the NHPC Teesta Stage VI Hydroelectric Project, killing 10 workers.

Q2. Where did the incident occur?
Answer: The accident took place in Samardung, Jholungey, in Namchi district of Sikkim.

Q3. What caused the tunnel collapse?
Answer: Officials said a sudden landslide triggered the collapse.

Q4. What has the Sikkim government said?
Answer: Chief Minister Prem Singh Tamang expressed condolences and assured full support for rescue operations and the affected families.

Q5. Are rescue operations still underway?
Answer: Yes. Rescue teams continue searching the site as authorities assess the situation and look for possible survivors.

Location Context

Sikkim, a Himalayan state in Northeast India, frequently experiences landslides during the monsoon because of its steep terrain and heavy rainfall. The state is home to several hydropower projects, making worker safety and disaster preparedness essential for infrastructure development.

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TAGGED: Namchi landslide, NHPC Teesta Stage VI, Sikkim News, Sikkim tunnel collapse, tunnel accident India
Boyar Debbarma July 22, 2026
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Posted by Boyar Debbarma
Driven to transform ideas into compelling stories, with a strong focus on creative writing.
Previous Article Nagaland Releases ₹70 Lakh Relief for Mon Landslide Victims After Deadly Flash Floods
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