India's National Clean Air Programme (NCAP) has helped establish the national air quality management framework in the country. For the first time, non-attainment cities have been identified, given clean air targets, and made accountable for meeting them, and a performance-linked funding strategy has been adopted for air quality management. This assessment report attempts to understand how this framework has catalysed good practices in the key sectors of pollution: vehicles, industry, solid waste and construction and demolition waste. This review is not a report card on what all cities have done, but an assessment of selected case studies from these sectors. The aim is to present a learning curve, and to understand how NCAP can be made more purposeful to drive implementation.