Electronic Interlocking to replace ageing relay-based systems at 32 stations, enhancing safety, reliability and operational efficiency on high-density rail corridors

New Delhi, June 17, 2026: Indian Railways has approved a ₹405 crore signalling modernisation project on Eastern Railway aimed at enhancing railway safety, improving service reliability and preparing critical rail corridors for next-generation train control technologies.

The project involves replacing relay-based interlocking systems with advanced Electronic Interlocking (EI) technology at 32 stations and signalling locations across High Density Network (HDN) and Highly Utilised Network (HUN) routes, strengthening operational resilience on some of the country’s busiest railway corridors.

The initiative forms part of Indian Railways’ broader strategy to modernise critical infrastructure, reduce system failures and improve passenger experience through technology-driven upgrades.

Key Highlights

• ₹405 crore sanctioned for signalling modernisation on Eastern Railway
• Electronic Interlocking to be installed at 32 stations and signalling locations
• Covers 25 Panel Interlocking (PI)/Route Relay Interlocking (RRI) stations
• Includes 7 Intermediate Block Signalling (IBS) locations
• Project focused on High Density and Highly Utilised railway corridors
• Faster fault detection and improved system reliability expected
• Supports future technologies including Kavach and Centralised Traffic Control
• Enhances passenger safety and operational efficiency

Upgrading Critical Railway Infrastructure

Many of the signalling installations currently operating on these routes are based on older relay technology that has served the railway network for decades but now faces increasing operational and maintenance challenges.

Issues such as ageing equipment, outdated power supply systems, wiring complexities and higher maintenance requirements have made modernization necessary to meet the growing demands of India’s expanding rail network.

The approved project seeks to address these challenges by deploying Electronic Interlocking systems that offer improved performance, greater reliability and enhanced operational control.

How Electronic Interlocking Improves Safety

Electronic Interlocking is a modern signalling technology that digitally controls train movements and route settings while ensuring that conflicting train paths cannot be established simultaneously.

Compared with conventional relay-based systems, Electronic Interlocking offers:

• Higher operational reliability
• Faster fault identification and restoration
• Improved safety safeguards
• Reduced maintenance requirements
• Greater system availability
• Enhanced operational flexibility

The technology significantly lowers the probability of signalling failures and helps ensure smoother train operations across heavily utilised routes.

Supporting Faster and More Reliable Train Operations

As passenger and freight traffic continue to grow across India’s railway network, reliable signalling infrastructure has become increasingly important for maintaining punctuality and operational efficiency.

The modernization project is expected to reduce service disruptions caused by signalling failures, improve train handling capabilities and support more efficient traffic management on busy routes.

By strengthening core railway systems, the project contributes to the long-term objective of increasing network capacity while maintaining high safety standards.

Preparing for Next-Generation Railway Technologies

The signalling upgrade also lays the foundation for the deployment of advanced railway technologies that are becoming central to Indian Railways’ modernization agenda.

Electronic Interlocking systems are designed to integrate with future-ready technologies such as:

• Kavach Automatic Train Protection System
• Automatic Block Signalling
• Centralised Traffic Control
• Advanced train monitoring systems
• Digital railway operations platforms

These technologies are expected to play a key role in improving railway safety, capacity utilization and operational efficiency in the years ahead.

Impact on Travel and Tourism

For travellers, investments in signalling modernization may not be immediately visible but often deliver some of the most important improvements in rail operations.

More reliable signalling systems help reduce delays, minimize disruptions and improve overall service consistency, contributing to a smoother travel experience.

Eastern Railway serves major tourism, pilgrimage, business and cultural destinations across eastern India. Enhanced operational reliability can improve passenger confidence and support continued growth in domestic tourism, particularly among travellers who rely heavily on rail transport.

Benefits for Hospitality and Business Travel

Reliable transportation infrastructure is a critical factor influencing tourism growth and business mobility.

Hotels, tourism operators, convention venues and hospitality businesses benefit from improved railway performance through more dependable travel schedules and better regional connectivity.

As India’s domestic travel market continues to expand, technology-driven railway upgrades help create the infrastructure backbone required to support leisure tourism, pilgrimage travel, corporate movement and MICE (Meetings, Incentives, Conferences and Exhibitions) activity.

Building a Smarter Railway Network

The ₹405 crore signalling modernization project underscores Indian Railways’ commitment to creating a safer, smarter and more technologically advanced transportation network.

By replacing ageing infrastructure with digital signalling systems, Indian Railways is strengthening the foundation for future growth while improving operational efficiency and passenger service standards across some of the country’s most important rail corridors.

For the travel, tourism and hospitality sectors, such investments represent an essential component of India’s broader infrastructure transformation, helping ensure that rail remains a safe, reliable and efficient mode of transport for millions of passengers every day.