Overview

• Northeast Frontier Railway said its Intrusion Detection System will cover all identified elephant corridors by April 2026.
• The system uses acoustic sensing over optical fibre to detect elephant movement near tracks and issue instant warnings to drivers and control rooms.
• Trials have been commissioned in four sections: Madarihat–Nagrakata, Habaipur–Lamsakhang–Patharkhola–Lumding, Kamakhya–Azara–Mirza, and Titabar–Mariani–Nakachari.
• These pilot stretches span 64.03 km of elephant corridors and 141 km of block sections, paving the way for expansion over the remaining 146.4 km of corridors.
• NFR first tested the technology at two sites in the Lumding and Alipurduar divisions in 2022 and frames the rollout as both a wildlife protection and operational safety measure.