Environment & Ecology·Prelims Strategy

Environmental Issues in India — Prelims Strategy

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Version 1Updated 9 Mar 2026

Prelims Strategy

For Prelims, the focus on Environmental Issues in India should be highly factual and concept-driven. Aspirants must prioritize understanding key legislation (e.g., EPA 1986, Air/Water Acts, FCA 1980, WPA 1972) and their latest amendments, including their core provisions and objectives.

Memorize important constitutional articles (48A, 51A(g), 21) and their judicial interpretations. Pay close attention to government schemes and initiatives related to air pollution (NCAP, GRAP), water management (Namami Gange, Jal Jeevan Mission, Atal Bhujal Yojana), waste management (SWM Rules, PWM Rules, E-Waste Rules), and forest conservation (CAMPA, FSI reports).

Key environmental principles like Polluter Pays, Precautionary Principle, and Sustainable Development, along with their associated landmark judgments (M.C. Mehta, Vellore Citizens Welfare Forum, T.N. Godavarman), are frequently tested.

Focus on specific data points and statistics, such as forest cover percentages (FSI reports), AQI levels for major cities, and groundwater depletion rates, ensuring they are current. Understand the causes, impacts, and major policy responses for each specific environmental issue (air, water, soil, waste, deforestation, mining, coastal).

Be prepared for questions on environmental organizations (CPCB, NGT, MoEFCC) and their roles. Cross-referencing with current affairs is vital, as new policies, reports, and environmental events are common sources for Prelims questions.

Practice MCQs with detailed explanations to identify common traps and strengthen conceptual clarity.

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