Central Railway successfully commissioned the long-awaited Karjat Yard Remodelling and new Route Relay Interlocking (RRI) system at Karjat Central Cabin on 12th October 2025 at 6:30 pm, marking a major milestone in its modernization drive. The Rs 74.53-crore project replaces one of the oldest operational RRIs on Central Railway with a safer, faster, and more reliable system.

The new RRI system includes 487 routes, 46 main signals, and 39 shunt signals. A dual detection system comprising Multi-Section Digital Axle Counters (MSDAC) and Audio Frequency Track Circuits (AFTC) has been implemented to enhance operational reliability. Automatic Block Signalling has been introduced between Karjat and Bhivpuri, enabling seamless train movement with minimal manual intervention. Real-time monitoring

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