A familiar sequence of events unfolds in the National Capital Region before the advent of winter. The monsoon retreats, dries the air and the wind drops. The pollution from construction, industry, road transport, hitherto being masked through the year, becomes more visible. What has worked so far in curbing pollution in the Delhi NCR region? What should Delhi focus on now? What is the way forward? Dr Suneela Garg, Advisor from W.H.O. and ICMR joins Parmeshwar Bawa to discuss all this and more.