As air quality in Delhi starts falling, a blame game has started between the Aam Aadmi Party (AAP) and the BJP. The BJP is holding Punjab’s AAP government for not controlling stubble-burning, which is a major contributor to Delhi's air pollution. NDTV’s Saurabh Shukla speaks to Punjab Agriculture Minister Kuldeep Singh Dhaliwal and checks a war room set up to tackle the issue of stubble-burning. A ground report.