Subject: Science And Tech | Published: 17 November 2025
Safe drinking water in India: policy, challenges & future for UPSC
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Access to safe drinking water is a fundamental human right and a cornerstone of public health and economic development. For India, a nation with vast geographical and socio-economic diversity, ensuring this access is a monumental challenge, intertwined with issues of federalism, environmental sustainability, and technological adoption. While historical efforts have laid a foundation, recent policy shifts and missions have dramatically reshaped the landscape.
The Paradigm Shift: Jal Jeevan Mission (JJM)
The most significant recent development is the Jal Jeevan Mission (JJM), launched in 2019. This initiative marked a strategic shift from merely creating water infrastructure to ensuring Functional Household Tap Connections (FHTC) for every rural household.
Fun Fact: Before the launch of the Jal Jeevan Mission in 2019, only about 3.23 crore (17%) of rural households had access to tap water. By late 2024, this number had surged past 14 crore households, crossing the 75% coverage mark, showcasing an unprecedented pace of implementation.
The mission’s core philosophy is community-centric, empowering local village water and sanitation committees, known as Pani Samitis, to manage their own water supply systems. This decentralized approach aims to ensure long-term sustainability and ownership. A major update in 2024 was the increased focus on water quality monitoring and surveillance, with the mandatory testing of water sources and the introduction of field testing kits for community use.
The Challenge of Water Contamination
Despite progress in access, water quality remains a critical concern. Contaminants like fluoride, arsenic, iron, and heavy metals pose severe health risks. Fluorosis, a debilitating disease caused by excessive fluoride ingestion, affects millions across several Indian states. Similarly, arsenic contamination in the Gangetic plains is a major public health emergency.
Techniques for Defluoridation of Water
Various methods have been developed to combat fluoride contamination, each with its own set of advantages and limitations.
| Technique | Method | Key Advantage | Key Limitation |
|---|---|---|---|
| Nalgonda Technique | Coagulation using alum, lime, and bleaching powder, followed by sedimentation. | Low-cost, simple to operate at community level. | High residual aluminum content; sludge disposal issues. |
| Activated Alumina | Adsorption process where fluoride ions are adsorbed onto activated alumina filters. | High efficiency, can be regenerated. | pH-sensitive, requires pre-treatment of water. |
| Bone Char Adsorption | Passing water through columns filled with charred animal bones. | Effective and relatively inexpensive. | Social/religious objections, potential for bacterial growth. |
| Ion-Exchange Resin | Fluoride ions are exchanged with other ions (like chloride) on a synthetic resin. | High selectivity and capacity. | High operational cost, regeneration is complex. |
| Membrane Filtration | Techniques like Reverse Osmosis (RO) and Nanofiltration use semi-permeable membranes. | Highly effective against a wide range of contaminants. | High energy consumption, water wastage (reject water). |
Mnemonic for Defluoridation Techniques: To remember the key methods, use the phrase “Nice And Bright Indian Minds”.
- N - Nalgonda Technique
- A - Activated Alumina
- B - Bone Char
- I - Ion-Exchange
- M - Membrane Filtration
The Emerging ‘One Water’ Approach
Reflecting global best practices, India is gradually moving towards a ‘One Water’ approach, also known as Integrated Urban Water Management (IUWM). This strategy, championed by bodies like the NITI Aayog and the newly proposed Bureau of Water Use Efficiency (BWUE) in 2023, views all water—drinking water, wastewater, stormwater—as a single, interconnected resource. It advocates for treating and reusing wastewater, harvesting rainwater, and creating a circular economy for water, thereby reducing the strain on freshwater sources.
Analogy: Think of the ‘One Water’ approach like a personal finance strategy. Instead of seeing salary as the only income and everything else as an expense, you start treating investments, refunds, and dividends as part of your total financial pool, optimizing every drop for maximum value.
Critical Policy Appraisal
| Challenges / Criticisms | Opportunities / Successes / Way Forward |
|---|---|
| Source Sustainability: Over-extraction of groundwater for schemes threatens long-term water security. | Focus on Sustainability: JJM guidelines mandate source strengthening, including rainwater harvesting and aquifer recharge. |
| Water Quality: Contamination with arsenic, fluoride, and new-age pollutants like microplastics remains a major risk. | Technological Adoption: Increased use of advanced filtration (Nanofiltration, RO) and real-time quality sensors. |
| Last-Mile Gaps: Disparities in access persist, especially in remote and tribal areas. | Community Empowerment: Pani Samitis are fostering local ownership and management, improving accountability. |
| Inter-State Disputes: Water is a state subject, leading to conflicts over river water sharing that hinder national planning. | Integrated Management: The ‘One Water’ approach and the proposed BWUE aim to create a more holistic, efficient framework. |
Statistic: India possesses only 4% of the world’s freshwater resources but is home to nearly 18% of the global population, making efficient water management a critical national priority.
Analytical Lens: UPSC Focus (Mains & Prelims)
Conceptual Basis
The legal foundation for the right to safe drinking water is implicitly derived from Article 21 of the Indian Constitution (Right to Life and Personal Liberty), as interpreted by the Supreme Court in multiple landmark judgments. Key legislation includes the Water (Prevention and Control of Pollution) Act, 1974, which established the Central and State Pollution Control Boards (CPCB & SPCBs).
UPSC Integration: Connecting the Dots
- Polity & Governance (GS Paper 2): The topic is central to cooperative and competitive federalism (water as a State List subject), the role of local self-government (Pani Samitis under the 73rd Amendment), and social justice.
- Economy (GS Paper 3): It connects directly to infrastructure development, public health expenditure, and its impact on human capital and labor productivity. The ‘One Water’ approach is a key element of the circular economy.
- Environment & Geography (GS Paper 1 & 3): It is intrinsically linked to groundwater management, climate change (impact on monsoons and water availability), and regional water stress distribution across India.
Expert Analysis: Future Impact
The future of water governance in India hinges on moving beyond a supply-centric model to one focused on demand management, quality assurance, and ecological sustainability. The success of the Jal Jeevan Mission will not be measured by the number of taps installed, but by the consistent delivery of potable water and the institutionalization of community-led management. The ‘One Water’ approach will be critical for urban resilience, forcing a rethink of city planning and waste management. The policy focus is clearly shifting towards a more integrated, technology-driven, and decentralized framework to achieve water security for all.
Prelims Practice Question (MCQ)
Question: The ‘Nalgonda Technique’, often used in community water purification, is primarily designed to remove which of the following contaminants? (a) Arsenic (b) Heavy metals like lead and mercury (c) Excess fluoride (d) Bacterial and viral pathogens
Answer: (c) Excess fluoride. Explanation: The Nalgonda Technique is a well-known indigenous method developed in India specifically for the removal of excess fluoride from drinking water at the community level. It uses a process of coagulation with alum and lime to precipitate fluoride ions.
Mains Sample Question
Question (15 Marks): The Jal Jeevan Mission (JJM) represents a significant shift from infrastructure creation to service delivery in ensuring rural water security. Critically analyze the successes and challenges of this mission, suggesting measures to ensure its long-term sustainability and contribution to public health goals.
Mind Map Outline (Revision Structure)
- Safe Drinking Water in India
- Constitutional & Legal Framework
- Article 21: Right to Life (Judicial Interpretation)
- State Subject (Entry 17, List II)
- Water (Prevention and Control of Pollution) Act, 1974
- Key Government Initiatives
- Jal Jeevan Mission (JJM)
- Objective: Functional Household Tap Connection (FHTC)
- Core Philosophy: Community-led (Pani Samitis)
- Recent Updates (2024-2025): Focus on quality monitoring, source sustainability.
- Progress: Over 75% rural coverage by late 2024.
- ‘One Water’ Approach / IUWM
- Concept: Integrated management of all water forms.
- Implementing Body: NITI Aayog advocacy, proposed Bureau of Water Use Efficiency (BWUE).
- Jal Jeevan Mission (JJM)
- Major Challenges
- Water Contamination
- Geogenic: Fluoride (Fluorosis), Arsenic.
- Anthropogenic: Heavy metals, nitrates, microplastics.
- Source Sustainability
- Groundwater depletion.
- Climate change impact.
- Governance Issues
- Inter-state water disputes.
- Last-mile delivery gaps.
- Water Contamination
- Water Purification Technologies
- Traditional/Community Level
- Nalgonda Technique
- Bone Char Adsorption
- Modern/Advanced
- Activated Alumina
- Ion-Exchange Resin
- Membrane Filtration (Reverse Osmosis, Nanofiltration)
- Traditional/Community Level
- Policy Appraisal & Way Forward
- Critique: Source depletion, quality gaps.
- Opportunities: Community ownership, technological innovation, circular economy (water reuse).
- Constitutional & Legal Framework