Kavach (meaning 'armor' in Hindi) is India's indigenously developed Automatic Train Protection (ATP) system designed to prevent collisions, overspeeding, and signal-passing-at-danger on Indian Railways — the world's fourth-largest rail network carrying 23 million passengers daily. The system uses a combination of RFID tags on tracks, radio communication between trains and stations, and onboard electronics to automatically apply brakes when collision risk is detected. Kavach has been tested at speeds up to 160 km/h and is being deployed across high-traffic routes.
Kavach addresses a critical safety and sovereignty need simultaneously. India's railway network has historically relied on imported European train protection systems (ETCS/ERTMS) that are expensive and designed for different operating conditions. Kavach was developed by the Research Design and Standards Organisation (RDSO) of Indian Railways at an estimated cost 75-80% lower than equivalent European systems, making nationwide deployment economically feasible for a network spanning 68,000+ route-kilometers. The system is designed for India's specific conditions — extreme temperatures, dust, electromagnetic interference from overhead traction.
Strategically, Kavach positions India as a potential exporter of affordable railway safety technology to developing nations that cannot afford European ETCS. Countries across Africa, Southeast Asia, and South America operate railway networks with similar challenges and budgets. India's ability to demonstrate safety performance comparable to European systems at a fraction of the cost creates an export opportunity and diplomatic tool. The system also reduces India's dependency on foreign technology for its most critical mass-transit infrastructure.