The Supreme Court Wednesday dismissed a petition of the Central Bureau of Investigation (CBI) challenging its 1996 verdict diluting the charges against accused Keshub Mahindra, then United Carbide India Ltd (UCIL) chairman, and six others for causing death due to negligence.

The investigative agency had moved the apex court, seeking a direction of the framing of charges against Mahindra and others for culpable homicide not amounting to murder that attracts the maximum imprisonment of 10 years.