Infrastructure / Indian Railways — UPSC Mains Model Answer

Kavach has been developed by the Research Designs and Standards Organisation (RDSO) in collaboration with Indian private industry partners, making it a rare example of public-private co-development in railway technology. This indigenous origin reduces dependency on expensive foreign ATP systems and supports the broader 'Atmanirbhar Bharat' framework in critical infrastructure.

The system integrates RFID tags fitted on tracks, on-board equipment, and trackside units communicating over radio frequency to continuously monitor train positions. If two trains are detected approaching each other on the same track, Kavach automatically triggers brakes without requiring driver intervention, directly addressing the most common cause of head-on collisions.

Kavach has been certified to Safety Integrity Level 4, the highest possible rating under international functional safety standards. This certification signals that the probability of a dangerous system failure is negligibly low, lending credibility for wider deployment and potential export to other railway networks.

Despite technical readiness, rollout across the vast Indian Railways network remains slow due to capital requirements, supply chain constraints for equipment, and the complexity of retrofitting existing rolling stock and track infrastructure. Accelerating deployment on high-density corridors is the immediate policy priority.