In Bhopal, a number of functions will mark the 25th anniversary of the Bhopal gas tragedy on Thursday. At least 4000 people died in one of world's biggest industrial tragedy which occurred on the 3rd of December 1984,when the Union Carbide plant accidentally released Methyl Isocynide (MIC) gas. AIR Bhopal correspondent reports that a series of functions has already started, with seminars and exhibitions being held by different organisations in the city.<br/>