It was the second.phase.of.Green revolution.Due to.Green revolution use of HYV seeds., pesticides and fertilizers became.promienent in Indian subcontinent.Union carbide corporation US company has its subsidiary branch UCIL in the capital city of Madhya Pradesh i.e.Bhopal .It was a plant.for making pesticides . Methyl isocynate one of the raw material used.in the production of.the pesticides is extremely toxic gas.which can react with water and able.to.form.300 toxic compounds .Due to carelessness.of.the plant owner Gas leaked at Bhopal.during midnight of Dec 2-3 1984 . According to survey 3000.person lost their lives .30000 person affected .case is still pending.clean.up.is.not done.yet..compensation.is.not.provided to the victims.