APSC Answer Writing (Daily) based on Assam Tribune – 26/09/2025

Model answer

Introduction

Hydropower forms a key pillar of India’s renewable energy strategy, with the Northeast holding nearly 40% of the country’s untapped hydro potential. The clearance of the 2,200 MW Oju Hydroelectric Project on the Subansiri River (Sept 2025) is part of this push. While it promises clean energy and strategic infrastructure, for Assam it raises concerns of flooding, erosion, seismic safety, and biodiversity loss.

Body

1️⃣ Importance of Hydropower in the Northeast

• Energy Security: Reduces reliance on fossil fuels, supports India’s Paris Agreement targets.
• Strategic Infrastructure: Strengthens presence near LAC with China.
• Regional Development: Revenue and jobs in Arunachal Pradesh.
• Grid Integration: Helps meet rising electricity demand in Assam and neighbouring states.

2️⃣ Downstream Concerns for Assam

• Floods & Flash Surges: Sudden water release could inundate Dhemaji, Lakhimpur, Majuli.
• Seismic Vulnerability: Entire Subansiri basin lies in Seismic Zone V; dam-break risk catastrophic.
• Erosion & Siltation: Alters Brahmaputra morphology, worsening Majuli’s shrinkage.
• Biodiversity Stress: Impact on Gangetic dolphin, migratory fish, and floodplain wetlands.
• Social Conflict: Echoes of Lower Subansiri protests, reflecting trust deficit with local communities.

3️⃣ Governance & Institutional Dimensions

• EIA & Cumulative Impact: Current assessments often site-specific; need basin-wide studies.
• Inter-State Coordination: Assam’s concerns not fully integrated in Arunachal’s project clearances.
• Judicial Interventions: Past cases (Lower Subansiri) saw Assam HC, SC, and expert panels intervening.
• International Angle: China’s upstream dams on Yarlung Tsangpo (Brahmaputra) raise strategic anxieties.

4️⃣ Way Forward

• Cumulative Impact Studies: Basin-wide ecological and seismic risk analysis.
• Joint Monitoring: Assam–Arunachal–Centre coordination committees with civil society.
• Dam Safety Upgrades: Earthquake-resilient design, sediment flushing, real-time flow monitoring.
• Community Engagement: Consultations with downstream villages, compensatory livelihood plans.
• Diversified Energy Mix: Balance large dams with smaller run-of-the-river, solar, and wind projects.
• Transparency & Trust: Periodic public disclosure of safety audits and water flow data.

Conclusion

The Oju Hydroelectric Project highlights the double-edged nature of hydropower in the Brahmaputra basin. For India, it strengthens clean energy and strategic presence, but for Assam, it amplifies ecological vulnerability and social anxieties. A sustainable path requires inclusive river basin planning, strong safety standards, and downstream-sensitive governance so that hydropower becomes a bridge between development and ecology, not a faultline of conflict.ecology, not a faultline of conflict.adaptation governance in India’s Northeast.