Indian Railways has sanctioned the installation of the Kavach automatic train protection system across the remaining 811 km of broad gauge sections in the Ambala Division of Northern Railway, with an outlay of ₹201 crore, according to an official statement released on Monday, 15 June. The approval marks a significant expansion of the indigenously developed collision-avoidance technology into one of north India's busiest rail corridors.

Routes Covered Under the Sanction

The sanctioned work spans several strategically critical sections within the Ambala Division, including Ambala Cantonment–Ludhiana, Kalka–Chandigarh–New Morinda–Sahnewal, Sirhind–Daulatpur Chowk, Rajpura–Bathinda–Shri Ganganagar, and Ludhiana–Dhuri–Jakhal. These corridors are key arteries linking the states of Haryana, Punjab, and Himachal Pradesh, handling heavy volumes of both passenger and freight traffic daily.

What Kavach Does

Kavach is an indigenously developed Automatic Train Protection (ATP) system engineered to prevent Signal Passing at Danger (SPAD) — one of the leading causes of train collisions on the Indian network. The system automatically applies brakes when an unsafe situation is detected, regulates train speed in critical zones, and significantly lowers collision risk. It operates on an LTE-based communication backbone, enabling real-time data exchange between locomotive and trackside infrastructure.

Broader Safety Investment Push

The ₹201 crore Ambala sanction is part of a wider capital push by Indian Railways. Multiple projects totalling ₹1,364.45 crore have been approved to strengthen safety, signalling, and communication infrastructure across the network. These include Kavach deployment on locomotives, expansion of the optical fibre cable network, and replacement of panel interlocking with electronic interlocking systems across various railway zones.

Separately, Northern Railway has received sanction for three itemised works worth ₹400.86 crore to strengthen its communication backbone — part of a larger umbrella project approved at ₹4,871 crore. A sub-umbrella allocation of ₹871 crore has been earmarked specifically for Northern Railway, covering fibre cable laying along 926.05 route km in Ambala Division, 1,204 route km in Delhi Division, and 1,074 route km in Lucknow Division.

Context and Significance

The Kavach rollout has gained urgency following a series of high-profile train accidents in recent years that intensified public and parliamentary scrutiny of railway safety systems. This is the third successive financial year in which Indian Railways has accelerated Kavach sanctions, reflecting a policy shift toward technology-led safety rather than reliance on manual protocols alone. Notably, the Ambala Division routes being covered are high-density corridors where the consequences of SPAD incidents are particularly severe. The expansion of the optical fibre backbone alongside Kavach is also significant — without robust communication infrastructure, the ATP system cannot function at its designed reliability.

Indian Railways is progressively rolling out Kavach across high-density and strategically important routes nationwide, with the long-term goal of covering the entire broad gauge network.