The government on Thursday said it was looking at "bio-remediation method" to "clean up" 350 tonnes of toxic waste lying in the now defunct Union carbide factory in Bhopal.

In an apparent setback to the campaign for those seeking stringent punishment for the accused in the Bhopal gas disaster, the Supreme Court on Wednesday dismissed CBI's curative petition against an earlier apex court judgement that diluted charges against the accused.

The judiciary has heaped more injustice on victims of the 1984 Bhopal gas tragedy, activists said on Wednesday after the apex court's decision to reject the Central Bureau of Investigation (CBI) plea for more stringent punishment to the seven accused. Some said it was a "black day" and squarely blamed the CBI for failing to defend the victims.

Social activists fighting for enhanced punishment to the accused in the Bhopal gas disaster on Wednesday expressed dismay over the Supreme Court's order dismissing the CBI's curative petition and called it "another black day".

The Supreme Court's rejection of the Central Bureau of Investigation (CBI) plea asking for more stringent punishment for the accused in the Bhopal gas tragedy was a "telling comment" on the government's attitude, the Bharatiya Janata Party (BJP) said on Wednesday.

Former Union Carbide Chief Warren Anderson did not meet then President Giani Zail Singh before he left for the United States after securing bail in the case of Bhopal gas disaster that claimed over 15