TNPSC Thervupettagam

Kavach 4.0

February 5 , 2026 17 hrs 0 min 19 0
  • Indian Railways commissioned 472.3 km of Kavach Version 4.0 safety system in a single day, the largest ever in the country.
  • The rollout covers key sections across Western, Northern, and East Central Railways, taking total Kavach coverage beyond 1,300 km.
  • Kavach 4.0 is India’s indigenous Automatic Train Protection (ATP) system.
  • The system prevents Signal Passing at Danger (SPAD), over speeding, and enhances operational reliability on high-density rail corridors.

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