Indian Railways' AI-enabled Intrusion Detection System (IDS); Designed to Generate Alerts for Loco Pilots, Station Masters and Control Room to Prevent Death of Elephants on Railway Tracks Using Distributed Acoustic Senso...

1. At a Glance

AI-enabled Intrusion Detection System (IDS) uses Distributed Acoustic Sensors (DAS) along railway optical fibre to detect elephant movement near tracks and alert loco pilots, station masters and Control Rooms [S1].
Joint initiative of Ministry of Railways with Ministry of Environment, Forest & Climate Change (MoEFCC) to curb elephant-train collisions [S1].
Relevant for UPSC at the intersection of infrastructure, biodiversity conservation, AI governance, and human-wildlife conflict mitigation.

PIB release dated 04 February 2026 announced IDS works sanctioned across 8 Railway zones covering ~1,169 Rkms (route-km), following an earlier deployment of 141 Rkms on Northeast Frontier Railway (NFR) [S1][S2].

Elephant-train collisions are the second-largest cause of unnatural elephant deaths in India after electrocution.
NFR piloted IDS in December 2022 on identified elephant corridors; branded popularly as "Gajraj" AI surveillance.
Earlier non-tech measures: speed restrictions in identified elephant corridors, ramps/underpasses, clearing of vegetation, honey-bee buzzer devices, awareness training for loco pilots [S1].
Project Elephant (1992, MoEFCC) provides the policy umbrella for elephant conservation.

System name: AI-enabled Intrusion Detection System (IDS) using Distributed Acoustic Sensors (DAS) [S1].
Components: Optical Fibre cable + hardware + pre-installed signatures of elephant locomotion (AI-trained vibration patterns) [S1].
Alert recipients: Loco pilots, Station Masters, Section Control Rooms [S1].
Implementing ministry: Ministry of Railways, in coordination with MoEFCC [S1].
Currently working: 141 Rkms on NFR [S2].
Sanctioned coverage (Rkms) [S1]:
NFR — 403.42
ECoR (East Coast Rly) — 368.70
SR (Southern) — 55.85
NR (Northern) — 52.00
SER (South Eastern) — 55.00
NER (North Eastern) — 99.18
WR (Western) — 115.00
ECR (East Central) — 20.30
Total ≈ 1,169.45 Rkms across 8 zones.
Outcome: Elephant deaths on tracks reduced from 26 (2013) to 12 (2024) [S1].

Scientific / Technological
DAS turns the railway's existing optical fibre into a continuous acoustic sensor by reading back-scattered light (Rayleigh scattering) for vibrations.
AI classifier matches vibration signatures against a library of elephant locomotion to suppress false positives from trains, vehicles, humans [S1].
Environmental
Directly addresses Schedule I species (Asian Elephant, Elephas maximus) protected under the Wildlife (Protection) Act, 1972; India's National Heritage Animal (2010).
Complements Project Elephant and elephant-corridor identification under the Gaj Yatra/Elephant Corridors report.
Administrative / Federal
Cross-ministerial: Railways (Union List) + Forests & Wildlife (Concurrent List); requires coordination with state forest departments for corridor identification [S1].
Ethical / Governance
Tech-mediated coexistence: AI as a tool for biodiversity protection, raising governance questions on data integration with control offices and accountability when alerts fail.
Economic
Avoids damage to rolling stock, derailments (e.g., NFR derailment after elephant collision) and ex-gratia outflows; cheaper than fencing entire forest stretches.

04 Feb 2026 — PIB statement listing zone-wise sanctioned Rkms and confirming 26→12 reduction in elephant deaths (2013→2024) [S1].
2025 — IDS operational over 141 Rkms on NFR's elephant-vulnerable corridors [S2].
Extension sanctioned to ECoR, SR, NR, SER, NER, WR, ECR zones [S1].

IDS uses Distributed Acoustic Sensors (DAS) along optical fibre — not cameras or thermal imaging [S1].
Alerts go to three recipients: loco pilot, station master, Control Room [S1].
Lead ministry: Ministry of Railways, coordinated with MoEFCC [S1].
NFR has the largest sanctioned coverage (403.42 Rkms); ECR the smallest (20.30 Rkms) [S1].
Elephant deaths on tracks: 26 in 2013 → 12 in 2024 [S1].
Currently operational stretch: 141 Rkms on NFR [S2].
Asian Elephant: Schedule I, Wildlife (Protection) Act 1972; IUCN: Endangered; CITES Appendix I.
Declared National Heritage Animal of India in 2010.
Project Elephant launched in 1992 by MoEFCC.
Total sanctioned IDS coverage across 8 zones ≈ 1,169 Rkms [S1].

GS-III: Science & Tech (AI in conservation), Infrastructure (Railways), Environment (biodiversity, human-wildlife conflict).
GS-II: Government policies & inter-ministerial coordination.
Probable stems: 1. "Discuss how emerging technologies like Distributed Acoustic Sensing and AI can mitigate human-wildlife conflict on linear infrastructure. Illustrate with Indian Railways' IDS." 2. "Examine the institutional and federal challenges in protecting elephant corridors traversed by railway lines in India." 3. "Linear infrastructure expansion threatens India's biodiversity. Critically assess mitigation measures taken by Indian Railways."

Project Elephant (1992) — policy umbrella for elephant conservation.
Elephant Corridors of India (2017 report) — 101 identified corridors.
Wildlife (Protection) Act, 1972 — Schedules & enforcement.
Kavach — indigenous Automatic Train Protection system (complementary railway safety tech).
Human-Elephant Conflict mitigation — under MoEFCC's Project Elephant Division.
CITES & IUCN status of Asian Elephant — international conservation regime.
Linear infrastructure & wildlife — MoEFCC-WII guidelines for eco-friendly measures.
National Board for Wildlife (NBWL) — clearances for projects through eco-sensitive zones.

Wrong tech: IDS uses acoustic sensing on fibre optic cable, not thermal cameras, drones or satellite imagery.
Wrong ministry: Lead is Railways, not MoEFCC alone; MoEFCC is a coordinator.
Confusing with Kavach: Kavach prevents train-train collisions/SPAD; IDS prevents train-elephant collisions.
Misreading numbers: 141 Rkms is currently operational (NFR); ~1,169 Rkms is the sanctioned expansion.
Asian Elephant status: IUCN Endangered (not Vulnerable); Schedule I of WPA 1972.

[S1] Indian Railways' AI-enabled Intrusion Detection System (IDS)… — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2223196 — (tier: 1)
[S2] Indian Railways Deploys AI Enabled Intrusion Detection System to Prevent Elephant Collisions in 141 RKms on NF Railway — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2199365 — (tier: 1)