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Source — Source: PIB ///Category — GS Paper 3 ///Published — 2026-02-06 ///Exam — Both Prelims and Mains ///Tags — Rapid Fire, Quick Facts For Prelims, GS Paper - 3 ///Source — Source: PIB ///Category — GS Paper 3 ///Published — 2026-02-06 ///Exam — Both Prelims and Mains ///Tags — Rapid Fire, Quick Facts For Prelims, GS Paper - 3 ///

Source: PIB · GS Paper 3

India Expands Kavach 4.0 Coverage

Indian Railways commissioned a record 472.3 route kilometres of Kavach Version 4.0 in a single day, taking the total indigenous ATP coverage to 1,306.3 km across five zones. Kavach, an indigenous Automatic Train Protection system, enhances rail safety by preventing SPADs, overspeeding and collisions, reflecting India’s push for indigenisation and high‑speed rail safety standards.

2026-02-06

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Source: PIB

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Key Facts & Data Points

Record rollout: 472.3 route kilometres of Kavach‑4.0 commissioned in one day (highest ever).
Total coverage: 1,306.3 route kilometres across Western, Northern and East Central Railways (5 zones).
Technology: Integrates micro‑processors, GPS, and radio communication for real‑time monitoring of train position, speed and signalling.
Safety functions:
Prevents Signal Passing at Danger (SPAD)
Controls overspeeding and applies emergency brakes
Alerts loco pilot on wrong‑direction movement & level‑crossing status
Operates reliably in low‑visibility and adverse weather.
Safety standard: Complies with Safety Integrity Level‑4 (SIL‑4) – the highest global railway safety standard, approved by RDSO.

Background & Context

Kavach (meaning “armour”) began as the Train Collision Avoidance System (TCAS) in 2012 and was later renamed.
Developed indigenously by Indian Railways and RDSO to suit India’s high‑density, multi‑line network.
Continuous upgrades based on operational feedback have led to Version 4.0, the most advanced iteration.

Significance for India / Governance / Policy

Indigenisation: Demonstrates successful ‘Make in India’ in high‑tech safety systems, reducing reliance on foreign ATP solutions.
Safety & Efficiency: Enhances passenger safety, reduces accident‑related losses, and improves punctuality.
Economic Impact: Safer rail operations lower insurance costs, boost freight reliability, and attract investment in rail infrastructure.
Strategic Alignment: Aligns with the National Rail Policy 2023 and Mission Raftaar, aiming for faster, safer, and more reliable rail services.

Related Constitutional / Legal Provisions

Railway Act, 1989 – empowers the Ministry of Railways to adopt safety standards and modernise signalling.
Indian Railways Act (proposed amendments) – may incorporate mandatory ATP systems for high‑traffic routes.
RDSO (Research Designs and Standards Organisation) – statutory body under the Ministry of Railways responsible for certification of safety standards like SIL‑4.

References

Kavach: Automatic Train Protection System