Crocodiles, snakes as border guards? India explores unconventional plan along Bangladesh frontier

India is considering an unconventional strategy to secure parts of its border with Bangladesh, exploring the use of crocodiles and venomous snakes as “natural deterrents” in areas where traditional fencing is not feasible.

According to an internal communication by the Border Security Force (BSF) dated March 26, personnel were asked to study the “feasibility of deploying reptiles in vulnerable riverine gaps” along the eastern and northeastern frontier.

The move is being considered for stretches of the 4,096-km India–Bangladesh border that remain unfenced due to difficult terrain. Large sections pass through marshlands, rivers and flood-prone zones, where constructing and maintaining physical barriers is challenging.

Officials say such areas are often used for illegal crossings, smuggling and other activities, making them security-sensitive. The proposed use of reptiles is being examined as a “biological barrier” to deter movement in these vulnerable zones.

The plan is still at an exploratory stage, with field units tasked to assess its operational feasibility and potential risks. Authorities have not taken a final decision on implementation.

The proposal has, however, sparked concern among human rights activists and wildlife experts. Critics argue that introducing dangerous animals into border regions could pose risks to local communities and disrupt fragile ecosystems.

India has long sought to fence its border with Bangladesh, investing heavily in physical barriers, surveillance systems and patrols. Despite these efforts, parts of the frontier remain difficult to secure due to constantly shifting river courses and flooding.