UPSC Mains 2018 GS1 Q14 — Water Management

• Brief justification of why water harvesting is the 'ideal solution' for Indian ground water depletion.
• Challenges specific to urban landscapes in implementing traditional harvesting (e.g., concrete surfaces, space constraints).
• Technological and infrastructural measures to enhance effectiveness (e.g., sponge cities, bioswales, pervious pavements).
• Policy, regulatory, and community-driven strategies for urban scaling (e.g., building bylaws, property tax incentives).

• Focusing too much on rural/agricultural water harvesting instead of the 'urban area' constraint.
• Listing general water conservation methods (like fixing leaky pipes) rather than focusing on 'harvesting' systems.
• Ignoring the 'ideal solution' part of the quote by failing to mention why other solutions like desalination or interlinking aren't as feasible for urban aquifers.
• Failing to mention the quality of harvested water (filtration/pollution) which is a major bottleneck in urban settings.

Devote approximately 50-60 words to establishing the context of ground water crisis and validating the harvesting system as the 'ideal' path. The bulk of the answer (150-170 words) should focus on the 'how' aspect, split between physical infrastructure innovations and governance/policy mechanisms. Use the final 20-30 words for a forward-looking conclusion linking it to the Jal Shakti Abhiyan or Sustainable Development Goals.