"Since Warren Anderson was declared a proclaimed offender during trial, trial against him, M/s Union Carbide Corporation (UCC), USA is still pending," the CBI said in response to an RTI query.
The investigating agency had re-registered the case initially filed by Hanumanganj Police Station, Bhopal on December 3, 1984 against J Mukund, K V Shetty, S P Choudhary, Yatin Raichoudhary and Shakil Abraham.
"The case resulted in the conviction of all accused who faced trial. CBI has filed a curative petition in the Supreme Court with a prayer to frame the charges under Section 304 (punishment for culpable homicide not amounting to murder). A revision and appeal has also been filed in the Sessions court of Bhopal to enhance punishment," the RTI reply by CBI said.
However, the details of correspondences between Ministry of External Affairs, Ministry of Home Affairs, Department of Personnel and Madhya Pradesh government among others and the CBI related to the case were denied.
"...disclosure of this information will hamper the extradition proceedings regarding Warren Anderson which in turn will hamper the prosecution of accused," the Public Information officer said in reply to the RTI application filed by advocate Vivek Garg.
When asked about the details of the case, B R Lall, former Joint Director of the CBI and incharge of the probe, repeated his allegation that he was "forced by the (then) Ministry of External Affairs officials not to follow extradition of Anderson".
"CBI investigation was influenced and commanded by some officials, as a result (of which) justice in the Bhopal gas leakage case got delayed, hence, denied," Lall told PTI.
Lall was in charge of the investigation from April 1994 to July 1995.
The gas leak on the night of December 2, 1984 had killed more than 15,000 people.