A bench headed by Justice GS Singhvi allowed the plea of Das who had approached the apex court for commutation of his death sentence on the ground that the President had taken eleven years to decide his mercy plea.
The apex 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, commuted death sentence of Das to life imprisonment.
Das, while out on bail in another case, had beheaded one Harakanta Das at Fancy Bazaar in Assam and surrendered with the victim's head on April 24, 1996 and in 1997, the sessions court there had sentenced him to death.
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 eleven 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.
He is currently lodged in Jorhat Central Jail in Assam.
SRK-Gauri anniversary: B-Town stars and their non-filmi better halves
Birthday special: Popular mothers and daughters in Bollywood
Spotted: 'Kaabil' star Hrithik Roshan with dad Rakesh Roshan
'Rock On 2' trailer launch: Farhan, Shraddha enthrall audience with live gig
Photos: Deepika Padukone, Sushmita Sen with daughters at Mumbai airport