India-Bangladesh Border

The India-Bangladesh border, India's longest at 4,096.7 km, is a critical internal security frontier shared by West Bengal, Tripura, Meghalaya, Mizoram, and Assam. Its historical roots trace back to the hasty Radcliffe Line demarcation in 1947, which created complex enclaves and adverse possessions.

The landmark Land Boundary Agreement (LBA) of 2015, enacted via the 100th Constitutional Amendment, resolved these territorial anomalies, simplifying the border and integrating enclave residents. Despite this diplomatic success, the border remains highly porous and challenging due to its diverse geography, including extensive riverine sections like the Sundarbans and dynamic charlands.

Major security challenges include persistent illegal immigration, driven by economic disparities and the recent Rohingya crisis, which strains resources and alters demographics. Rampant cross-border criminal activities such as cattle smuggling, drug trafficking (especially Yaba tablets), human trafficking, and the movement of Fake Indian Currency Notes (FICN) pose significant threats.

These activities are often orchestrated by well-organized transnational syndicates exploiting the terrain and local vulnerabilities. While direct cross-border terrorism is less prevalent than on the western front, the border has historically been used by North-Eastern insurgent groups for sanctuary and logistics.

India's response involves a multi-pronged strategy led by the Border Security Force (BSF). This includes physical infrastructure like border fencing and roads, alongside advanced technological solutions under the Comprehensive Integrated Border Management System (CIBMS), featuring smart fencing, UAVs, radars, and riverine sensors.

The legal framework, comprising the Citizenship Act 1955, Foreigners Act 1946, and Passport Act 1967, provides the statutory basis for managing cross-border movement. Bilateral cooperation with Bangladesh, particularly through regular BSF-Border Guard Bangladesh (BGB) talks and the Coordinated Border Management Plan (CBMP), is vital for intelligence sharing and joint operations.

Border haats also play a crucial role in fostering legal trade and people-to-people contact, contributing to a more secure and cooperative border environment.