 In order to overcome the increasing revenue loss , the officials shut down the plant , firing most of the workers , including Dilip . The plant officials then order the usage of the remaining methyl isocyanate as soon as possible . Meanwhile , Dilip is busy with the wedding of his sister , and Roy has a final look of the control room . The safety measures fail and a runaway reaction follows . The faulty tanks cause the gas to start leaking , and an attempt to contain the leak fails . The gas escapes to the surroundings and is carried east by the wind . Motwani rushes to alert the people in the vicinity of the plant to vacate and head west , since the warning sirens were previously sabotaged . He meets Dilip , who ignores the warning and asks Motwani to leave the area without causing any hindrance to the wedding . Meanwhile , the guests experience irritation in the eyes and discomfort in breathing . Dilip senses the danger and visits the plant , realising that the plant had been compromised . He rushes back to his residence where he finds his family and relatives succumbing to the toxic gas . He carries away his son , paying farewell to his wife 's corpse and flees the slum . 
