Indian Railways has approved a ₹405 crore signalling modernization project on Eastern Railway as part of its broader strategy to modernize signalling systems on critical routes. The project involves replacing relay-based interlocking systems with Electronic Interlocking (EI) at 32 stations, including 25 Panel Interlocking/Route Relay Interlocking stations and 7 Intermediate Block Signalling locations on High Density Network and Highly Utilised Network routes.
The existing signalling installations on these routes face operational limitations due to ageing infrastructure, including non-segregation of clean and dirty wiring, outdated power supply arrangements, improper earthing systems, and ageing signalling equipment. These issues have led to higher maintenance requirements and increased failure risks. The new Electronic Interlocking technology offers significantly higher reliability, enhanced safety, and faster fault detection capabilities compared to conventional relay-based systems.
The modernization will support smoother train operations on some of the busiest railway corridors in the country while enhancing safety standards for both passenger and freight services. The project is aligned with Indian Railways' ongoing efforts to create a modern signalling ecosystem capable of supporting advanced technologies such as Kavach, Automatic Block Signalling, and Centralised Traffic Control on high-density routes. This approval reflects Indian Railways' continued commitment to modernizing critical infrastructure and improving reliability of train services.