Megaprojects and Escalating Inter-State Disputes
- The Political Pitch: The Union Home Minister at the Southern Zonal Council meeting proposed linking the Brahmaputra, Godavari, and Cauvery to solve India's water crisis for 100 years.
- Inter-State Deadlocks: Ground reality reveals unresolved disputes under the Interstate River Water Disputes Act, 1956 — such as the Pennaiyar tribunal delay and Karnataka's Mekedatu dam controversy.
- Project Realities: The ₹44,000 crore Ken-Betwa Link Project (foundation laid in 2024) faces intense tribal resistance in Chhatarpur and large-scale submergence of Panna Tiger Reserve forests.
- The Core Flaw: Mega inter-basin transfers assume a permanent 'surplus' in donor basins, which vanishes during regional droughts, triggering acute inter-state conflict in interlinking of rivers and demand side water management in India.
Ecological & Hydrological Costs
Diverting natural river flows disrupts estuarine ecosystems, impairs sediment replenishment, accelerates coastal erosion, and causes massive forest fragmentation and tribal displacement across donor river basins.
The Distress-Period Conflict
Once recipient regions build water-intensive cropping patterns reliant on transferred water, they resist any reduction during deficit years, turning donor states into water-stressed zones.
1. Micro-Irrigation Expansion
Shift agricultural water consumption from flood irrigation to drip and sprinkler systems under PMKSY.
2. Agro-Climatic Crop Realignment
Disincentivize water-guzzling crops (paddy, sugarcane) in water-stressed groundwater blocks in favor of millets and pulses.
3. Decentralized Water Harvesting
Revive traditional community water structures (tankas, baolis, eris) through Mission Amrit Sarovar.
4. Urban Wastewater Recycling
Mandate 100% tertiary treated wastewater recycling for industrial and non-potable municipal uses.
A paradigm transition towards interlinking of rivers and demand side water management in India is essential for sustainable water governance.
1. The Ken-Betwa Link Project is the first river interlinking project implemented under the National Perspective Plan (NPP).
2. Under the Interstate River Water Disputes Act, 1956, the decision of an Inter-State Water Dispute Tribunal has the same force as an order or decree of the Supreme Court.
3. Water is exclusively listed under the Union List (List I) of the Seventh Schedule of the Indian Constitution.
Which of the statements given above are correct?
Correct Answer: A — 1 and 2 only
Statement 3 is incorrect because Water is primarily a State Subject (Entry 17, State List), subject to Entry 56 of the Union List (regulation of inter-state rivers in public interest). Statements 1 and 2 are correct.
1. Reduction in weed
2. Reduction in soil salinity
3. Reduction in soil erosion
Select the correct answer using the code given below:
A) 1 and 2 only B) 3 only C) 1 and 3 only D) 1, 2 and 3
Correct Answer: C — 1 and 3 only
Drip irrigation delivers water directly to root zones, reducing weed growth and surface runoff erosion. However, improper drip irrigation in arid regions can sometimes increase surface soil salinity.
UPSC CSE Mains 2020 — GS Paper I (Actual PYQ)
Model Answer Blueprint (15 Marks | 250 Words)
Key Structured Points
- Introduction: Contrast supply-side mega-dams with decentralized water governance in interlinking of rivers and demand side water management in India.
- Limitations of River-Linking: Ecological destruction (Panna submergence in Ken-Betwa), questionable 'surplus' assumptions during climate-induced droughts, and federal friction.
- The Demand-Side Imperative: 85% of freshwater is absorbed by agriculture; micro-irrigation, crop diversification away from water-intensive staples, and urban sewage recycling offer far higher ROI.
- Policy Recommendations: Institutionalizing river basin organizations (RBOs), community-led groundwater aquifer mapping, and implementing Mihir Shah Committee recommendations.