Introduction
The National Perspective Plan (NPP) for Interlinking of Rivers was formulated in 1980 by the Ministry of Water Resources (now the Ministry of Jal Shakti) to address the uneven distribution of water resources across the country. The plan aims to transfer water from surplus river basins to water-deficit regions through a network of reservoirs and canals, thereby enhancing water security, irrigation, hydropower generation and flood management.
The National Water Development Agency (NWDA), established in 1982, is the nodal agency responsible for the survey, investigation and preparation of feasibility reports for interlinking projects.
Objectives
- Transfer surplus water to water-scarce regions.
- Expand irrigation potential.
- Provide drinking and industrial water supply.
- Mitigate floods and droughts.
- Generate hydropower.
- Improve inland navigation.
- Enhance groundwater recharge.
- Promote balanced regional development.
- Strengthen water and food security.
Components of the National Perspective Plan
1. Himalayan Rivers Development Component
This component seeks to utilise the water resources of the Himalayan river systems by constructing storage reservoirs and interlinking rivers.
Major objectives include:
- Flood moderation in the Ganga and Brahmaputra basins.
- Additional irrigation in northern India.
- Hydropower generation.
- Augmentation of water availability in the dry season.
Proposed links include:
- Kosi–Mechi Link
- Kosi–Ghaghra Link
- Gandak–Ganga Link
- Ghaghara–Yamuna Link
- Sarda–Yamuna Link
- Yamuna–Rajasthan Link
- Rajasthan–Sabarmati Link
- Chunar–Sone Barrage Link
2. Peninsular Rivers Development Component
This component focuses on transferring water from surplus rivers in eastern and central India to water-deficit regions in western and southern India.
Major objectives include:
- Drought mitigation.
- Irrigation expansion.
- Drinking water supply.
- Hydropower generation.
Important proposed links include:
- Mahanadi–Godavari
- Godavari–Krishna
- Krishna–Pennar
- Pennar–Cauvery
- Cauvery–Vaigai–Gundar
- Ken–Betwa
- Parbati–Kalisindh–Chambal
- Par–Tapi–Narmada
- Damanganga–Pinjal
National Water Development Agency (NWDA)
The NWDA is an autonomous organisation under the Ministry of Jal Shakti.
Functions
- Assess water balance in river basins.
- Identify surplus and deficit basins.
- Conduct surveys and investigations.
- Prepare feasibility and Detailed Project Reports (DPRs).
- Facilitate agreements between States.
- Assist in implementation of river-linking projects.
Major Interlinking Projects
Ken–Betwa Link Project
- India’s first river interlinking project under implementation.
- Links the Ken River with the Betwa River.
- Benefits Madhya Pradesh and Uttar Pradesh.
- Intended to provide irrigation, drinking water and hydropower.
- Implemented under a Special Purpose Vehicle (SPV).
Damanganga–Pinjal Link
- Proposed to supply drinking water to the Mumbai Metropolitan Region.
Par–Tapi–Narmada Link
- Intended to transfer surplus water from rivers in western India to drought-prone regions of Gujarat.
Godavari–Krishna Link
- Aims to transfer surplus Godavari waters to the Krishna basin to improve irrigation and water availability in southern India.
Advantages
Water Security
Ensures more equitable distribution of water resources across regions.
Irrigation
Expands irrigated area, improving agricultural productivity and food security.
Flood Management
Transfers excess water from flood-prone basins, reducing flood damage.
Drought Mitigation
Provides assured water supply to drought-prone regions.
Hydropower Generation
Storage reservoirs can support renewable electricity generation.
Drinking Water Supply
Improves access to safe drinking water for urban and rural populations.
Groundwater Recharge
Canals and reservoirs contribute to aquifer recharge in water-stressed areas.
Inland Navigation
Interconnected waterways may facilitate inland water transport and regional trade.
Regional Development
Supports industrial growth, employment generation and balanced socio-economic development.
Challenges
Environmental Concerns
- Loss of forests and biodiversity.
- Impact on aquatic ecosystems.
- Alteration of natural river flows.
- Wildlife habitat fragmentation.
- Changes in sediment transport.
Social Issues
- Displacement of local communities.
- Rehabilitation and resettlement challenges.
- Impact on tribal populations.
- Livelihood disruptions.
Interstate Water Disputes
Interlinking requires consensus among States, making negotiations complex.
Climate Change
Changing rainfall patterns may alter the availability of surplus water, affecting project viability.
Financial Cost
River-linking projects require massive investments in dams, canals and supporting infrastructure.
Technical Challenges
- Long canal networks.
- Pumping requirements in certain stretches.
- Land acquisition.
- Geological and engineering complexities.
Legal and Institutional Issues
Projects require multiple environmental, forest and wildlife clearances, along with coordination among the Union Government, States and various regulatory authorities.
Supreme Court Judgment
In Re: Networking of Rivers (2012)
The Supreme Court urged the Union Government to pursue river interlinking in a time-bound manner and directed the constitution of a Special Committee for Interlinking of Rivers to facilitate coordination and implementation. However, the Court also recognised that implementation depends on environmental clearances, financial feasibility and the consent of the concerned States.
Government Initiatives
- National Perspective Plan (1980)
- National Water Development Agency (1982)
- Special Committee for Interlinking of Rivers (SCILR)
- Ken–Betwa Link Project
- Jal Shakti Ministry’s integrated water resources management initiatives
- National Water Policy promoting basin-level planning and efficient water use
Criticism
- The concept of “surplus” and “deficit” river basins is contested, particularly under changing climatic conditions.
- Large-scale engineering interventions may permanently alter river ecology.
- High economic costs may outweigh projected benefits in some projects.
- Decentralised water conservation measures may offer more sustainable alternatives in certain regions.
- Interstate disputes and lengthy approval processes can significantly delay implementation.
Way Forward
- Adopt integrated river basin management.
- Strengthen scientific assessment of water availability under climate change.
- Prioritise ecological sustainability and environmental flows.
- Ensure comprehensive environmental and social impact assessments.
- Improve rehabilitation and resettlement of affected communities.
- Promote water-use efficiency in agriculture through micro-irrigation.
- Encourage rainwater harvesting, watershed development and groundwater recharge alongside river-linking projects.
- Build consensus among States through cooperative federalism.
- Use modern technologies such as GIS, remote sensing and real-time hydrological monitoring for better planning.
Conclusion
The National Perspective Plan for Interlinking of Rivers represents one of India’s most ambitious water resource management initiatives aimed at enhancing water security, irrigation and regional development. While it offers significant socio-economic benefits, its success depends on scientific planning, environmental sustainability, interstate cooperation and careful balancing of developmental needs with ecological conservation.
