How does illegal transborder migration pose a threat to India’s security? Discuss the strategies to curb this, bringing out the factors which give impetus to such migration.

Illegal transborder migration — largely from Bangladesh across India's porous eastern frontier and from Myanmar — has demographic, economic and security consequences for India.

Threats to security

• Demographic change: altered population balance in border districts of Assam, West Bengal and the North-East, fuelling ethnic tension and agitation.
• Resource strain: pressure on land, jobs and public services, provoking local hostility and law-and-order problems.
• Internal security: risk of infiltration by criminal and terror elements, human trafficking and fake-document networks.
• Political and social: vote-bank politics, insurgency linkages and communal friction.

Factors giving impetus

• Push: poverty, unemployment, environmental stress and floods, and political or religious persecution in source countries.
• Pull: better economic opportunity, porous and riverine borders difficult to fence, kinship and linguistic ties, and easy availability of forged identity documents.

Strategies to curb migration

• Complete border fencing, floodlighting, riverine patrolling and smart-border technology.
• Strengthen the BSF and coordinated intelligence.
• A robust, tamper-proof identity and National Register mechanism to detect illegal residents.
• Bilateral cooperation with source countries on border management and repatriation.
• Address root causes through regional development and legal, work-permit-based migration channels.

Conclusion

Illegal migration is both a security and humanitarian challenge. A firm yet humane response — secure borders, reliable identification and diplomatic engagement — best safeguards national security.