With reference to the various multipurpose projects in India, which one among the following statements is not correct ?

1. Evolution of Multipurpose Projects in India (basic)

In the early years of post-independence India, the nation faced two massive challenges: food insecurity and a lack of industrial infrastructure. To solve these, the government looked toward the concept of Multipurpose River Valley Projects (MRVPs). These are integrated systems designed to serve multiple objectives simultaneously, such as irrigation, hydroelectric power generation, flood control, soil conservation, and even inland navigation. Jawaharlal Nehru, India's first Prime Minister, famously envisioned these projects as the "Temples of Modern India," signifying their role in the nation's spiritual and material resurrection Rajiv Ahir, A Brief History of Modern India, Challenges Before the New-born Nation, p.591.

The evolution of these projects was heavily influenced by international success stories, most notably the Tennessee Valley Authority (TVA) in the United States. This model suggested that a single river basin should be managed by a unified authority to maximize regional development. The first major milestone in India was the establishment of the Damodar Valley Corporation (DVC) in 1948. Based on a plan prepared by W.L. Voorduin (a senior engineer from the TVA), the DVC was the first project where a statutory body was created by an Act of Parliament to manage the holistic development of a river valley Majid Husain, Geography of India, Regional Development and Planning, p.61.

As the planning process matured, these projects became the backbone of regional planning. By harnessing the flow of major rivers like the Damodar, Mahanadi, and Sutlej, the government sought to transform backward regions into agricultural and industrial hubs. The success of the DVC, for instance, is often cited as a landmark in India’s regional development history Majid Husain, Geography of India, Contemporary Issues, p.130.

Sources: A Brief History of Modern India, Challenges Before the New-born Nation, p.591; Geography of India, Regional Development and Planning, p.61; Geography of India, Contemporary Issues, p.130

2. Inter-State River Water Management and Legal Framework (intermediate)

In a federal structure like India, rivers do not respect political boundaries. Since water is primarily a State subject (Entry 17 of the State List), but the regulation of inter-state rivers falls under the Union List (Entry 56), there is a natural overlap of authority. To manage this, the Constitution provides a unique legal bridge through Article 262. This article is fascinating because it gives Parliament the power to bypass the usual judicial process to ensure that complex water sharing is handled through specialized adjudication rather than standard litigation Indian Polity, M. Laxmikanth, Inter-State Relations, p.167.

Under Article 262, Parliament has enacted two critical pieces of legislation that form the backbone of water management in India:

• The River Boards Act (1956): This was envisioned as a proactive tool. It allows the Central Government to set up "River Boards" to advise state governments on the regulation and development of inter-state river valleys. Interestingly, these boards are meant to prevent disputes before they start by fostering cooperation in project planning Introduction to the Constitution of India, D. D. Basu, INTER-STATE RELATIONS, p.407.
• The Inter-State River Water Disputes (ISRW) Act (1956): This is the reactive tool. When states cannot reach an agreement through negotiations, the Centre can constitute an ad hoc Tribunal. The decision of this tribunal is final and binding on all parties Indian Polity, M. Laxmikanth, Inter-State Relations, p.167.

One of the most significant aspects of this framework is the exclusion of court jurisdiction. According to Section 11 of the ISRW Act, neither the Supreme Court nor any other court has jurisdiction over water disputes referred to a tribunal under this Act. This was designed to ensure that technical experts and legal minds in a tribunal could decide on water-sharing based on hydrology and equity, rather than getting bogged down in the massive backlog of the regular judiciary Introduction to the Constitution of India, D. D. Basu, THE SUPREME COURT, p.347.

Feature	River Boards Act, 1956	ISRW Act, 1956
Primary Role	Development and Advisory	Adjudication and Conflict Resolution
Trigger	Request by states for coordination	Failure of negotiations between states
Entity	River Board	Ad hoc Tribunal

Sources: Indian Polity, M. Laxmikanth, Inter-State Relations, p.167; Introduction to the Constitution of India, D. D. Basu, THE SUPREME COURT, p.347; Introduction to the Constitution of India, D. D. Basu, INTER-STATE RELATIONS, p.407

3. Hydropower Potential and National Power Grid (intermediate)

To understand India's hydropower potential, we must first look at the geographic dualism of its river systems. India's hydropower capacity is deeply linked to the river regime — the pattern of seasonal flow of water in a river. As noted in Geography of India, The Drainage System of India, p.22, the Himalayan rivers are perennial, receiving water from both rainfall and snow-melt. This 'monsoonal-glacial' regime ensures a steady flow year-round, making them ideal for consistent power generation. In contrast, Peninsular rivers are primarily monsoonal and rain-fed, meaning their power generation capacity can fluctuate significantly during the dry season Contemporary India-I, Drainage, p.17.
Because hydropower potential is often concentrated in specific geographic clusters (like the Himalayas or the Western Ghats), the National Power Grid plays a vital role. It integrates regional grids into a single network, allowing surplus electricity from hydro-rich states to be transmitted to power-deficit industrial hubs. This integration is supported by inter-state joint ventures, where multiple states collaborate to share the costs and benefits of massive projects. For example, the Machkund Project is a joint venture between Andhra Pradesh and Odisha, while the Bhakra-Nangal Project involves Punjab, Haryana, and Rajasthan Geography of India, Energy Resources, p.19-21.
Understanding these collaborations is crucial for the UPSC exam, as the administrative control of a project often differs from its physical location. For instance, the Mayurakshi Project primarily serves West Bengal, even though its dam (the Canada Dam) is located in Jharkhand. Similarly, the Chambal Valley Project is a combined execution by Madhya Pradesh and Rajasthan, featuring dams like Gandhi Sagar and Rana Pratap Sagar.

Feature	Himalayan Rivers	Peninsular Rivers
Nature of Flow	Perennial (Year-round)	Seasonal (Rain-dependent)
Source of Water	Snow-melt and Rainfall	Monsoon Rainfall only
Hydro Potential	High and consistent	Variable; high during monsoons

Sources: Contemporary India-I, Drainage, p.17; Geography of India, The Drainage System of India, p.22; Geography of India, Energy Resources, p.19-21

4. Major Canal Systems and Irrigation Geography (intermediate)

Canals serve as the vital arteries of Indian agriculture, acting as perennial sources of irrigation by drawing water from major river systems or massive reservoirs. Unlike seasonal wells, canals often carry nutrient-rich sediments from riverbeds, which naturally enhances soil fertility Environment and Ecology, Majid Hussain, Chapter 9, p.70. Geographically, these systems are categorized into perennial canals, which maintain a steady flow year-round through weirs and sluice gates, and inundation canals, which flow only during periods of high river discharge Indian Economy, Nitin Singhania, Irrigation in India, p.360.

The Indira Gandhi Canal (IGC) stands as a landmark of hydraulic engineering in the Thar Desert. Conceived by Kanwar Sain in 1948, it originates at the Harike Barrage in Punjab—the confluence of the Sutlej and Beas rivers. Running parallel to the Pakistan border, it transforms the arid landscape of Rajasthan. To ensure this massive project translated into actual agricultural yields, the government introduced the Command Area Development (CAD) program in 1974. This multi-disciplinary approach focuses on building field channels, leveling land, and improving water utilization to ensure that "created potential" actually reaches the farmer's field Geography of India, Majid Husain, Regional Development and Planning, p.23-24.

Modern water management often involves complex inter-state cooperation, as rivers rarely respect political boundaries. Many major projects are joint ventures where states share both the costs and the benefits (electricity and irrigation). For instance, while the Mayurakshi Project involves the Canada Dam (Massanjore Dam) located in Jharkhand, it primarily serves the agricultural needs of West Bengal. Similarly, the Chambal Valley Project is a collaborative effort between Madhya Pradesh and Rajasthan, managing a cascade of dams including the Gandhi Sagar and Rana Pratap Sagar Geography of India, Majid Husain, Energy Resources, p.22.

Canal System	Primary State(s) Benefited	Key Feature
Indira Gandhi Canal	Rajasthan, Punjab, Haryana	One of the world's longest; uses Harike Barrage.
Sarda Canal	Uttar Pradesh	Crucial for the Indo-Gangetic plains.
Eden Canal	West Bengal	Drawn from the Damodar River.
Triveni Canal	Bihar	Utilizes water from the Gandak River.

Sources: Environment and Ecology, Majid Hussain, Major Crops and Cropping Patterns in India, p.70; Indian Economy, Nitin Singhania, Irrigation in India, p.360; INDIA PEOPLE AND ECONOMY, NCERT, Planning and Sustainable Development in Indian Context, p.72; Geography of India, Majid Husain, Regional Development and Planning, p.23-24

5. Environmental and Social Impacts of Large Dams (intermediate)

To understand the impact of large dams, we must look beyond their role as 'temples of modern India' and examine the complex ecological and social footprints they leave behind. From a first-principles perspective, a dam fundamentally alters a river's natural regime. By regulating water flow, dams prevent the natural transport of sediment. This leads to excessive sedimentation at the bottom of the reservoir, depriving downstream areas of nutrient-rich silt and resulting in 'rockier' stream beds that provide poor habitats for aquatic life NCERT, Contemporary India II, p.57. Furthermore, these massive structures fragment rivers, acting as physical barriers that prevent aquatic fauna, especially migratory fish, from reaching their spawning grounds. From a geological standpoint, the sheer weight of the water stored in massive reservoirs can lead to Reservoir-Induced Seismicity (RIS). The massive column of water increases the pressure on underlying rock layers and can 'lubricate' existing geological faults, potentially triggering earthquakes Physical Geography by PMF IAS, Earthquakes, p.179. A classic Indian example of this phenomenon is the 6.3 magnitude Koyna earthquake of 1967 in Maharashtra, which geologists link to the Koyna Dam reservoir Physical Geography by PMF IAS, Earthquakes, p.179. Additionally, the creation of these reservoirs often involves the submergence of vast tracts of forests and fertile soil. This submerged vegetation undergoes anaerobic decomposition over time, leading to the release of greenhouse gases NCERT, Contemporary India II, p.57.

Impact Category	Specific Consequence	Mechanism
Hydrological	Poor Sediment Flow	Silt settles in the reservoir instead of enriching downstream floodplains.
Biological	Habitat Fragmentation	Dams block migration routes for aquatic species (e.g., for spawning).
Geological	Induced Seismicity	Water pressure and lubrication of faults trigger local tremors.
Climatic	Greenhouse Gas Emission	Submerged vegetation decomposes and releases methane.

Socially, while projects like the Sardar Sarovar Dam on the Narmada River provide vital irrigation and drinking water to drought-prone regions like Kutch and Western Rajasthan Majid Husain, Geography of India, p.43, they often come at the cost of massive human displacement. This often leads to intense social scrutiny and environmental movements as local communities lose their ancestral lands and traditional livelihoods.

Sources: NCERT, Contemporary India II, The Making of a Global World, p.57; Physical Geography by PMF IAS, Earthquakes, p.179; Majid Husain, Geography of India, The Drainage System of India, p.43

6. Key Inter-State Joint Ventures: Chambal, Machkund, and Parambikulam (exam-level)

In a federal country like India, rivers often flow across state boundaries, making Inter-State Joint Ventures essential for equitable water sharing and power generation. These projects are collaborative efforts where two or more states share the costs, management, and benefits (irrigation and electricity) of a river basin. Understanding which states partner on specific projects is a frequent requirement in geography and energy resource modules. Geography of India, Energy Resources, p.21

One of the most prominent examples is the Chambal Valley Project, a joint execution by Madhya Pradesh and Rajasthan. This project utilizes the Chambal River (a major tributary of the Yamuna) through a series of dams: the Gandhi Sagar Dam in Madhya Pradesh, and the Rana Pratap Sagar and Jawahar Sagar dams in Rajasthan. Beyond power generation, the project is vital for controlling soil erosion in the ravine-prone Chambal basin and providing irrigation to nearly 5 lakh hectares across both states. Geography of India, The Drainage System of India, p.14

Other critical joint ventures include the Machkund Project and the Parambikulam Aliyar Project. The Machkund Hydroelectric Project is a collaborative effort between Andhra Pradesh and Odisha, located on the Machkund River (a tributary of the Sileru). Meanwhile, the Parambikulam Aliyar Project is an intricate inter-state venture between Kerala and Tamil Nadu, involving the diversion of several west-flowing rivers to provide irrigation and power to the rain-shadow regions of Tamil Nadu while respecting Kerala's water requirements. Geography of India, The Drainage System of India, p.40

Project	Participating States	Key Features
Chambal Valley	MP & Rajasthan	Dams: Gandhi Sagar, Rana Pratap Sagar, Jawahar Sagar.
Machkund	Andhra Pradesh & Odisha	Focuses primarily on Hydroelectric power.
Parambikulam Aliyar	Kerala & Tamil Nadu	Complex system of 8 rivers and tunnels.

Sources: Geography of India, The Drainage System of India, p.14, 40; Geography of India, Energy Resources, p.21, 22

7. The Mayurakshi Project and Eastern Indian Water Systems (exam-level)

The Mayurakshi Project is a vital multipurpose river valley project in Eastern India, designed to harness the waters of the Mayurakshi River. This river originates in the Chotanagpur Plateau of Jharkhand and eventually flows into the Bhagirathi-Hooghly system in West Bengal Majid Husain, Geography of India, Chapter 8, p. 22. A common point of confusion for students is the interstate nature of this project; while the primary dam, the Massanjore Dam (also famously known as the Canada Dam due to Canadian technical and financial assistance), is located in the Dumka district of Jharkhand, the project’s command area primarily benefits the districts of Birbhum and Murshidabad in West Bengal.

Unlike larger systems like the Damodar Valley Corporation (DVC), which is a formal joint venture between Jharkhand and West Bengal to manage the Damodar and its tributaries like the Barakar Nitin Singhania, Indian Economy, Chapter 15, p. 367, the Mayurakshi project operates with a specific geographic distribution: the catchment and storage are largely in the hills of Jharkhand (Santhal Pargana), while the vast irrigation network and the Tilpara Barrage are situated downstream in West Bengal. The project provides irrigation to approximately 3 lakh hectares and generates about 4,000 kW of hydroelectricity Majid Husain, Geography of India, Chapter 8, p. 22.

To master Eastern Indian water systems, one must distinguish between these specific interstate arrangements. For instance, while the Mayurakshi project involves Jharkhand and West Bengal, other regional projects have different partners. The Machkund Project is a collaboration between Andhra Pradesh and Odisha, and the Chambal Project is shared by Madhya Pradesh and Rajasthan Nitin Singhania, Indian Economy, Chapter 15, p. 367. Understanding these pairings is essential for accurately identifying the administrative and economic reach of India’s power and irrigation infrastructure.

Project	Primary River	Participating/Beneficiary States
Mayurakshi	Mayurakshi (Hooghly tributary)	West Bengal & Jharkhand
Damodar Valley (DVC)	Damodar & Barakar	West Bengal & Jharkhand
Mahi Project	Mahi	Gujarat & Rajasthan (Vindhyan origin)

Sources: Geography of India, Chapter 8: Energy Resources, p.21-22; Indian Economy, Chapter 15: Infrastructure, p.367

8. Solving the Original PYQ (exam-level)

Now that you have mastered the geographical distribution of India's river systems, this question tests your ability to apply those building blocks to the political and administrative side of water management: Interstate Joint Ventures. Success in these questions requires more than just knowing where a river flows; it requires distinguishing between beneficiary states and participating states. In this specific case, you are looking for the 'not correct' statement, which means one of these projects has an incorrectly assigned partner state based on its hydrological and political history.

To arrive at the correct answer, (C) Mayurakshi project is a joint venture of Odisha and West Bengal, you must recall the specific location of the infrastructure. While the Mayurakshi River flows into West Bengal, its primary storage facility—the Massanjore Dam (also known as the Canada Dam)—is actually located in Jharkhand (formerly part of Bihar). Therefore, the joint cooperation is between West Bengal and Jharkhand, not Odisha. UPSC often uses geographical proximity traps; since Odisha and West Bengal are neighbors, it seems plausible they would share a project, but the hydrological reality points to the Santhal Pargana region in Jharkhand as the true partner.

The other options represent successful interstate collaborations that you should memorize as benchmarks. The Machkund project is a classic 50:50 venture between Andhra Pradesh and Odisha on the Sileru River. Similarly, the Parambikulam Aliyar project is a complex diversion scheme involving Kerala and Tamil Nadu, while the Chambal Valley project is the definitive example of Madhya Pradesh and Rajasthan sharing the benefits of the Gandhi Sagar and Rana Pratap Sagar dams. Understanding these established partnerships helps you eliminate the 'correct' facts to isolate the 'incorrect' one. Sources: Geography of India, Majid Husain and India-WRIS Wiki.