"We have gone through the review petition and record of the appeal and are convinced that the judgement of which review has been sought does not suffer from any error apparent warranting its reconsideration," a bench headed by Justice G S Singhvi said while dismissing the review petition.
The bench also said that earlier, at one stage, the then President had also recommended commutation of Das's capital punishment.
"Therefore, we do not find any valid ground to review judgement dated May 1, 2013," the bench also comprising justice S J Mukhopadhaya said.
The apex court had on May 1 allowed the plea of convict Mahendra Nath Das, who had approached it for commutation of his death sentence on the ground that the President had taken eleven years to decide his mercy plea.
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The court, which had refused to grant a similar relief to Khalistani terrorist Devinderpal Singh Bhullar on the ground of delay in deciding mercy plea, however, had commuted death sentence of Das to life imprisonment.
His conviction and sentence was subsequently upheld by the Gauhati High Court in 1998 and the Supreme Court in 1999.
He had moved in 1999 a mercy plea, which remained pending for 11 years before the President and was rejected in 2011.
Das had then filed a writ petition in the apex court pleading for commuting the death sentence to life imprisonment since he had already spent about 14 years in jail during the disposal of his petition seeking presidential clemency.