Critically evaluate India's progress towards NCAP's PM reduction targets. What role can 'best practice' compendiums play in bridging implementation gaps across states?

Launched in January 2019, the National Clean Air Programme (NCAP) covers 131 non-attainment and million-plus cities, with the target revised to a 40% PM10 reduction or attainment of the 60 µg/m³ standard by 2025-26 [2]. Progress is real but uneven, and outcome-based rather than input-based.

Achievements

• Measurable improvement: 103 of 130 NCAP cities recorded lower annual PM10 in 2024-25 over the 2017-18 baseline; 64 cities crossed 20% reduction and 25 cities crossed 40% [1].
• Fiscal backing: ₹19,614 crore earmarked (FY 2019-20 to 2025-26), with 49 million-plus cities funded through XV Finance Commission air-quality grants [3].
• Competitive federalism: Swachh Vayu Sarvekshan converts City Action Plans into scored rankings with cash awards — Indore scored 200/200 and won ₹1.5 crore in 2025 [1].

Persisting gaps

• Roughly a fifth of cities show no improvement, and only a quarter meet the 40% benchmark, making the 2025-26 goal partly unmet [1].
• NCAP is an executive scheme, not statutory; targets bind no one legally.
• Focus on PM10 (largely road/construction dust) understates PM2.5 from combustion; airshed-level sources like stubble burning cross city limits.
• Weak urban local body capacity and thin monitoring networks constrain smaller cities.

Role of best-practice compendiums

• The Compendium of Best Management Practices under NCAP, released with the 5th Sarvekshan awards (2026), documents replicable city strategies [4].
• Enables horizontal learning — mechanised road sweeping, C&D waste recycling, e-bus fleets — cutting the cost of policy experimentation for laggard ULBs.
• Paired with ward-level Sarvekshan guidelines, it pushes accountability below the corporation, aiding hyperlocal source control and citizen participation [4].
• Limits: compendiums are advisory; without funds, staff and airshed regulation, replication remains selective.

Codification of success is necessary but not sufficient. Pairing compendium-driven learning with statutory airshed authorities, PM2.5-linked targets and capacity grants to ULBs can convert India's promising trajectory into durable attainment of clean-air standards, advancing SDG 11.6 and Article 21's right to a healthy environment.