GS-3News & Analysis29 June 2026thehindu.com

Landslide dams river in rain-battered Arunachal, warning for Assam downstream

A massive landslide triggered by heavy rainfall in Arunachal Pradesh blocked the Siji river, creating an artificial dam and posing a severe flash flood threat to downstream areas in both Arunachal Pradesh and Assam. The incident has caused significant damage to infrastructure, including roads and bridges, disrupted connectivity, and led to search operations for missing persons. The Border Roads Organisation (BRO) has been instrumental in restoring critical road links in the affected regions.

A massive landslide triggered by heavy rainfall in Arunachal Pradesh blocked the Siji river, creating an artificial dam and posing a severe flash flood threat to downstream areas in both Arunachal Pradesh and Assam. The incident has caused significant damage to infrastructure, including roads and bridges, disrupted connectivity, and led to search operations for missing persons. The Border Roads Organisation (BRO) has been instrumental in restoring critical road links in the affected regions.

Exam linkage

GS Paper 1: Physical Geography (Geomorphology, Indian Geography - Rivers, Climate); GS Paper 3: Disaster Management (Landslides, Floods, Mitigation strategies), Environment (Impact of human activities on environment, environmental degradation).

Syllabus mapping

Environment & EcologyDevelopment Processes NgosGovernance Transparency AccountabilityInternational InstitutionsInfrastructureDisaster Management