Indian cities need to rethink their water future

📌 Summary:

• Context: A heat wave across India has been aggravated by severe water shortage driven by a groundwater crisis and falling reservoir levels, hitting metros like Delhi, Mumbai, Bengaluru and Chennai.

• Core argument: Climate change alone cannot explain why large parts of the country are parched — Indian cities are living beyond their hydrological means, a structural failure of demand-side management and municipal governance.

• Causal chain: (a) Rising temperatures increase evaporation losses; (b) dilapidated distribution networks, inadequate metering and poor municipal governance cause water-use inefficiency; (c) untreated wastewater and under-harvesting of rainwater prevent optimum use of scarce resources; (d) authorities treat each crisis as an isolated event, ignoring structural dry-season shortfalls.

• Key data / precedents: NITI Aayog's Composite Water Management Index (CWMI, 2018) warned cities live beyond their hydrological means; the Jal Shakti Ministry's Dynamic Groundwater Resources Assessment flagged aquifer over-extraction; the Mihir Shah Committee (2016) noted India's post-Independence water policy focused on augmenting supply with little attention to demand-side management.

• Solutions proposed: Shift to demand-side management; scientific analysis of household and industrial water use to curb overexploitation by the well-heeled; institutional innovation; scale efficient-use programmes like the Atal Bhujal Yojana; treat wastewater and harvest rainwater.

🎯 UPSC Relevance: GS1 (urbanisation, water resources) and GS3 (water-resource management, conservation); GS2 (municipal governance) — a multi-paper theme on sustainable urban water security.

📝 Prelims Facts:

• CWMI (Composite Water Management Index) is a NITI Aayog tool (first 2018) ranking states on water management.

• Atal Bhujal Yojana is a Jal Shakti Ministry scheme for community-led, sustainable groundwater management.

• The Mihir Shah Committee (2016) recommended restructuring India's water institutions (CWC and CGWB).

🔑 Key Term: Demand-side management (of water) — policies focused on reducing and optimising consumption (efficiency, metering, pricing) rather than only augmenting supply.