The Border Security Force (BSF) is conducting a feasibility study to install a 90-km physical fence along the Sundarbans section of the India–Bangladesh border. The proposal aims to curb illegal infiltration and cross-border activities, but has raised concerns over its potential impact on the ecologically sensitive Sundarbans mangrove ecosystem.

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• The Border Security Force (BSF) is studying the feasibility of constructing a 90-km fence in the Sundarbans.
• The proposed fencing is along the India–Bangladesh border.
• The primary objective is to prevent illegal infiltration and cross-border activities.
• The Sundarbans is the world’s largest mangrove forest.
• It is a UNESCO World Heritage Site shared by India and Bangladesh.
• The region is home to the Royal Bengal Tiger, estuarine crocodiles, and rich biodiversity.
• The terrain consists of mangrove forests, creeks, mudflats, and swamps, making construction difficult.
• The feasibility study will examine the technical and environmental challenges of fencing.
• The project has raised concerns about its impact on the fragile ecosystem and wildlife movement.
• The Sundarbans play a crucial role in coastal protection, biodiversity conservation, and climate resilience.
• The region is highly vulnerable to cyclones, sea-level rise, and coastal erosion.
• Balancing national security with environmental conservation remains a key challenge for the project.