West Bengal's newly launched crackdown on illegal migrants under Chief Minister Suvendu Adhikari has drawn broad endorsement from India's national security establishment — but officials are simultaneously sounding the alarm that the operation could drive a large-scale displacement of undocumented individuals into other states. The Bharatiya Janata Party (BJP) government's formal adoption of a 'detect, detain and deport' protocol marks one of the most assertive state-level responses to illegal immigration in recent years.

The 'Detect, Detain and Deport' Directive

The West Bengal government has directed the Director General of Police (DGP) and the Chief Secretary to ensure full compliance with the new protocol. Officials describe it as a structured, three-stage response to a problem that has, according to security planners, been festering for over five decades. The immediate focus is on identification and detention of undocumented individuals, followed by deportation through established legal channels.

Roots of the Problem: A Security Perspective

According to security officials, what began as a systematic cross-border influx in the 1970s — allegedly facilitated by Pakistan's Inter-Services Intelligence (ISI) and the Jamaat-e-Islami — has evolved into what they describe as a nationwide security challenge. Officials say the strategy, conceived in the aftermath of the Bangladesh Liberation War of 1971, was designed to alter demographic balances in Indian border states.

Over decades, according to officials, illegal immigrants were reportedly absorbed into crime networks. They are alleged to be involved in the fake currency racket, narcotics trade, and cattle smuggling, particularly in districts such as Malda and Murshidabad. An Intelligence Bureau official said that forged documents — including voter identification cards and Aadhaar cards — were systematically created to integrate these individuals into the electoral process, with touts allegedly directing them to vote for specific parties under threat of deportation.

The Nationwide Spread: Bihar and South India in Focus

Security officials warn that the problem is no longer confined to West Bengal and the northeastern states. Assam has historically borne the heaviest burden in the northeast, but officials say the spread is now nationwide. Bihar and states in South India are increasingly cited as areas where illegal migrants are being absorbed into plantation and construction labour markets at below-market wages. Officials warn that touts operating across multiple states are actively placing undocumented workers with employers who, over time, become dependent on the low-cost labour.

Notably, officials caution that the launch of the West Bengal crackdown may accelerate this migration to other states, as touts seek to relocate individuals before they are detained. Security agencies are urging all state governments to proactively apply the 'detect, detain and deport' framework.

Border Fencing: The Infrastructure Gap

India and Bangladesh share a 2,200-km border, of which approximately 1,600 km has been fenced, leaving a significant stretch vulnerable. The government has announced the immediate handover of 75 acres covering 27 km of unfenced territory. Of this, 9 km will be allocated for Border Security Force (BSF) outposts, with the remainder earmarked for fencing. Officials say the project is targeted for completion within one year.

What Security Agencies Are Saying

Officials are unambiguous in their assessment: the West Bengal move is a necessary first step, but insufficient on its own. 'National security cannot be compromised for the sake of votes,' one official said. They stress that many undocumented individuals are not economic migrants but are allegedly embedded in criminal and terror networks linked to the ISI and Jamaat-e-Islami. Some have reportedly been apprehended in connection with terror cells, narcotics distribution, and the circulation of fake Indian currency.

With the crackdown now under way, the coming months will test whether other state governments move in concert — or whether the displacement of illegal migrants simply shifts the problem rather than resolves it.