Interlinking of Rivers: Significance & Challenges

The National Perspective Plan (NPP) envisions 30 interlinking projects to balance India’s water surplus & deficit regions. The Ken-Betwa Link Project is the first to enter implementation under this framework.

About Interlinking of Rivers

Inter-linking of rivers (ILR) refers to the planned transfer of water from surplus river basins to water-deficit basins through a network of canals, reservoirs, and dams.
- Aiming to balance regional water availability, enhance irrigation, and ensure water security.
Project Components: A total of 30 ILR projects have been identified: 14 under the Himalayan Component and 16 under the Peninsular Component.
Project Progress: Pre-Feasibility Reports (PFRs) are completed for all 30 projects, Feasibility Reports (FRs) for 26 projects, and Detailed Project Reports (DPRs) for 11 projects.

Objectives of Inter-Linking Rivers (ILR)

Water Security: Ensure equitable water distribution; nearly 600 million Indians face high water stress (NITI Aayog, 2023).
Flood & Drought Control: Divert surplus floodwater to drought-prone regions like Bundelkhand, reducing annual losses of ~$10 billion.
Agricultural Growth: Expand irrigation across 35 million hectares, lowering crop failure risk and boosting food security.
Hydropower Generation: Utilize ILR dams for renewable electricity, contributing to India’s 175 GW renewable energy target.
Drinking Water Supply: Provide safe drinking water to water-scarce states like Rajasthan, Tamil Nadu, Andhra Pradesh.
Navigation & Connectivity: Develop inland waterways through ILR canals, cutting transport costs by up to 50% and boosting trade.

Significance of Inter-Linking of Rivers

Water Redistribution: ILR plans to transfer around 200 BCM annually from surplus to deficit regions. This addresses water scarcity affecting over 600 million people in drought-prone states like Rajasthan and Gujarat.
Agricultural Enhancement: The project will expand irrigation over 34 million hectares, boosting crop productivity. Early efforts in the Krishna delta aided sowing of 2.5 lakh acres of paddy.
Hydropower Generation: ILR could add approximately 34,000 MW of renewable electricity to the national grid. This supports industrial, agricultural, and rural energy demands efficiently.
Economic Development: Development of inland waterways can cut freight transport costs by up to 50%. It also strengthens regional logistics and boosts economic growth.
Sustainable Water Management: ILR helps reduce groundwater over-extraction by using surface water more effectively. This ensures long-term sustainable water usage across deficit regions.
Social Benefits: ILR projects will generate employment in rural areas, improving livelihoods.
It also reduces the burden on women and enhances access to water.

Challenges with Inter-Linking of Rivers

Political Factors

Inter-State Disputes: Water being a state subject causes conflicts. E.g., Kerala-Tamil Nadu sharing issues.
Central-State Coordination: Delays in approvals and fund allocations slow project progress.
International Relations: Projects affecting Nepal, Bhutan, or Bangladesh require diplomatic negotiations for water sharing.

Environmental Impact

Habitat Loss: Ken-Betwa submerges 98 sq. km of Panna Tiger Reserve, threatening tigers, gharials, and other species.
Deforestation: Large-scale tree felling alters local climate and biodiversity; ~50,000 hectares may be affected in major projects.
Rainfall Change: Recent studies indicate inter-basin transfers may reduce rainfall in donor basins, affecting regional hydrology.

Economic Burden

High Costs: Ken-Betwa project estimated at ₹44,605 crore, total ILR program may exceed ₹5 lakh crore.
Maintenance Expenses: Long-term upkeep of canals, dams, and reservoirs adds fiscal pressure on states and Centre.
Cost-Benefit Concerns: Benefit-to-cost ratios for some links remain below 1, questioning project viability.

Relocation: Thousands of families in ILR projects face displacement, losing homes and farmland.
Livelihood Loss: Farmers, fishers, and forest-dependent communities face disruption of income sources.
Rehabilitation Challenges: Compensation delays and inadequate resettlement have led to local protests in pilot project areas.

Way Forward

Tech Feasibility: Complete scientific assessments; all 30 ILR projects have PFRs done, 26 FRs, 11 DPRs (NWDA, 2025).
Resettlement Plan: Provide relief for displaced populations. E.g., Ken-Betwa may affect ~20,000 people.
Stakeholder Involvement: Include farmers, communities, and states in planning for participatory governance.
Ecological Safeguard: Protect sensitive ecosystems. E.g., KBLP threatens 98 sq km of Panna Tiger Reserve.
Phased Execution: Implement gradually to minimize social and environmental impact while ensuring benefits.

The Interlinking of Rivers, hailed as India’s “water grid,” can boost water and food security but faces ecological, financial, and political challenges. As former President A.P.J. Abdul Kalam noted, “Interlinking of rivers can be a boon for farmers and a shield against floods and droughts, if executed with vision and sustainability.”

Reference: PIB

UPSC Mains PYQs – Theme – Inter-Linking of Rivers

[UPSC 2020] The interlinking of rivers can provide viable solutions to the multi-dimensional inter-related problem of droughts, floods and interrupted navigation. Critically examine.
[UPSC 2017] Not many years ago, river linking was a concept but it is becoming reality in the country. Discuss the advantages of river linking and its possible impact on the environment.

PMF IAS Pathfinder for Mains – Question 360

Q. Interlinking of Rivers has often been called a “Water grid” for India. Do you think it is a sustainable solution for India’s water crisis? Substantiate with an example. (150 Words) (10 Marks)

Approach

Introduction: Write a brief introduction about the Interlinking of the river by mentioning the Ken-Betwa Link Project.
Body: Write how Inter-Linking of rivers is a sustainable solution and the challenges facing Inter-Linking of rivers.
Conclusion: Write a comprehensive conclusion, emphasising necessary safeguards and complementary measures.