Former Finance Minister P Chidambaram tells NDTV that Sonia and Rahul Gandhi need to speak more and respond with a sense of urgency to a lowering morale in the Congress party; A cop gets injured as a mob in Birbhum attacked a police team trying to recover explosives after a tip-off; After the Diwali blast, it is time to deal with soaring pollution levels. Delhi the worst city in the country with pollution levels nine times worse than normal; and more in our news wrap of the day.