The Supreme Court on Monday ordered a ban on the sale of firecrackers in Delhi ahead of Diwali. The order came on a petition filed by parents of three children who said as the capital chokes in toxic air every year around the festive season, they are the ones most impacted. A panel of eight top doctors come together on NDTV to give us expert view on the issue and what they think is best for this city of 20 million people.