By Vikas Sir, Founder & Senior Faculty – Cosmo Classes | 11 July 2026

The Indian Railways approved two major infrastructure projects worth ₹381 crore on 10 July 2026 to strengthen railway safety and locomotive maintenance. The projects cover the deployment of the Kavach Version 4.0 automatic train protection system and additional homing facilities for electric locomotives, marking a further push in the nationwide roll-out of indigenous rail safety technology.

Kavach is India's indigenously developed Automatic Train Protection (ATP) system. It is designed to prevent Signal Passed at Danger (SPAD) incidents and head-on collisions by automatically applying brakes when a loco-pilot fails to respond to signals or over-speeds. The system was developed by the Research Design and Standards Organisation (RDSO) and was earlier known as the Train Collision Avoidance System (TCAS).

The first project, worth ₹206 crore, will deploy Kavach 4.0 across 680 route kilometres in the Delhi Division of Northern Railway, covering the Rewari–Delhi and Shakurbasti–Bathinda sections along with their feeder branch lines. The second project, worth ₹175 crore, provides additional homing facilities for 250 three-phase electric locomotives at the High Horse Power Diesel Shed in Raipur under South East Central Railway.

These approvals form part of the wider modernisation drive of Indian Railways. As of March 2026, about 3,103 route kilometres had already been equipped with Kavach, with further deployment planned in the Ambala and Ahmedabad Divisions. Homing facilities are used for stabling and maintaining locomotives at designated sheds, thereby improving operational reliability in both freight and passenger services on high-density corridors.

Exam Facts

▶ Indian Railways approved two projects worth ₹381 crore on 10 July 2026.

▶ Kavach is an indigenous Automatic Train Protection (ATP) system developed by RDSO.

▶ Kavach was earlier known as the Train Collision Avoidance System (TCAS).

▶ Kavach 4.0 will be deployed over 680 route km in the Delhi Division of Northern Railway (₹206 crore).

▶ Homing facilities for 250 three-phase electric locomotives approved at Raipur (₹175 crore).

▶ SPAD = Signal Passed at Danger — the key hazard Kavach prevents.

▶ As of March 2026, about 3,103 route km were covered under Kavach.

Practice Set (8 Questions)

Q1. Kavach, seen in the news, is associated with which sector?
A. Cyber security
B. Railway safety
C. Defence aircraft
D. Digital banking

Show Answer

Answer: B – Railway safety. Kavach is India's indigenous Automatic Train Protection system.

Q2. What is the total outlay of the two railway projects approved on 10 July 2026?
A. ₹206 crore
B. ₹175 crore
C. ₹381 crore
D. ₹500 crore

Show Answer

Answer: C – ₹381 crore. ₹206 crore (Kavach) + ₹175 crore (homing facilities) = ₹381 crore.

Q3. 'SPAD', which Kavach helps prevent, stands for:
A. Speed Passed At Distance
B. Signal Passed at Danger
C. System Protection And Detection
D. Safe Passenger And Driver

Show Answer

Answer: B – Signal Passed at Danger.

Q4. Kavach 4.0 deployment (680 route km) was approved in the Delhi Division of which zone?
A. Western Railway
B. Northern Railway
C. South East Central Railway
D. Central Railway

Show Answer

Answer: B – Northern Railway.

Q5. Kavach was earlier known by which name?
A. ETCS
B. TCAS
C. ARP
D. ATC

Show Answer

Answer: B – TCAS (Train Collision Avoidance System).

Q6. Which organisation developed the Kavach system?
A. ISRO
B. RDSO
C. DRDO
D. CSIR

Show Answer

Answer: B – RDSO (Research Design and Standards Organisation).

Q7. The ₹175 crore project provides homing facilities for locomotives at which location?
A. Raipur
B. Rewari
C. Bathinda
D. Ambala

Show Answer

Answer: A – Raipur. Under South East Central Railway.

Q8. How many route kilometres had Kavach covered as of March 2026?
A. 1,500 km
B. 2,000 km
C. 3,103 km
D. 5,000 km

Show Answer

Answer: C – 3,103 route km.

UPSC / RPSC Relevance

  • UPSC Prelims: Science & Technology, Indian Railways, indigenous safety systems (Kavach), important abbreviations (ATP, SPAD, RDSO).
  • UPSC Mains – GS Paper III: Infrastructure (railways), indigenisation of technology, science & technology developments.
  • RPSC (RAS) / SSC / RRB: Current affairs, Indian Railways general awareness, science & technology.

UPSC Mains Descriptive Question

Q. The deployment of the indigenous Kavach system reflects India's push towards safer and self-reliant railway infrastructure. Discuss the significance of automatic train protection systems and the challenges in scaling them across the vast Indian Railways network. (250 words, 15 marks)