Maharashtra Congress leader Sachin Sawant demanded the resignation of Minister of Petroleum and Natural Gas, Dharmendra Pradhan or the sinking of ONGC's barge P-305 which lead to the deaths of 40 crew members. He said this accident is not a natural but a man-made tragedy. At the same time, Maharashtra Minister Nawab Malik said that the Meteorological Department had warned about this three days ago, but no steps were taken. Watch video.