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Railways commissions Kavach 4.0 on 738 Route km to boost safety on Delhi-Mumbai & Delhi-Howrah lines

Kavach 4.0 railways, Delhi-Mumbai rail safety: Kavach aids the Loco Pilot in running of trains within specified speed limits by automatic application of brakes in case Loco Pilot fails to do so and also helps the trains to run safely during inclement weather.

The Kavach is a highly technology intensive system, which requires safety certification of highest order (SIL-4).Kavach 4.0 railways: The Kavach is a highly technology intensive system, which requires safety certification of highest order (SIL-4).
Written by: Anish Mondal
3 min readDec 5, 2025 04:21 PM IST First published on: Dec 5, 2025 at 03:59 PM IST

Kavach railway project, Delhi-Mumbai rail safety: To enhance safety, Indian Railways (IR) is installing Kavach 4.0, an indigenously developed, upgraded version of Automatic Train Protection (ATP) system, in a phased manner on the country’s two busiest rail corridors: Delhi–Mumbai and Delhi–Howrah. The Kavach is a highly technology intensive system, which requires safety certification of highest order (SIL-4).

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Railway Kavach news

Approved by RDSO on July 16, 2024, the Kavach version 4.0 covers all the major features required for the diverse railway network. Major improvement in Version 4.0 includes increased Location Accuracy, Improved Information of Signal Aspects in bigger yards, Station to Station Kavach interface on OFC and Direct Interface to existing Electronic Interlocking System. With these improvements, Kavach Version 4.0. is planned for large scale deployment over Indian Railways.

Anish Mondal is a journalist with over nine years of experience covering the railways and roadways. ... Read More

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