A bench headed by Chief Justice P Sathasivam rejected the Centre's submission that there was no unreasonable delay in deciding their mercy plea and the condemned prisoners did not go through agonising experience as they were enjoying life behind the bars.
The bench, also comprising justices Ranjan Gogoi and S K Singh, said they are unable to accept the Centre's view and commuted the death sentence of convicts--Santhan, Murugan and Perarivalan--to imprisonment for life subject to remission by the government.
"We implore the government to render advice in reasonable time to the President," the bench said, adding that "the executive should exercise its power one way or other in reasonable time".
It said the government should handle the cases of mercy petitions in a more systematised manner.
"We are confident that mercy plea can be decided at much faster speed than what is being done now," the bench said.
Rajiv Gandhi was killed in May 1991. His assassins were convicted by a TADA court in January 1998 and were awarded death sentence, which was confirmed by the apex court May 11, 1999.