The three convicts - Murugan, Santhan and Perarivalan - are hopeful of commutation of their death sentence into life imprisonment.
The Supreme Court will today take up the petitions of three men convicted of killing former Prime Minister Rajiv Gandhi, who want their death sentence to be commuted to a life term on grounds of a long delay in a decision on their mercy plea.
The convicts - Murugan, Santhan and Perarivalan - are hopeful following a recent Supreme Court order that said that death sentences can be commuted if there is an inordinate and undue delay in deciding mercy petitions.
Last week, the counsel for the convicts argued that the delay of five years and eight months in deciding Murugan's mercy petition was inordinate enough to commute his death sentence to life imprisonment.
The mercy petitions of the three men were rejected in 2011 by then President Pratibha Patil. Although the Supreme Court confirmed their death sentences in 2000, it took the President 11 years to reject their mercy pleas.
Rajiv Gandhi was assassinated by a woman suicide bomber on May 21, 1991, at Sriperumbudur in Tamil Nadu.
In 1998, a court had sentenced 26 people to death in the case. However, when the case reached the Supreme Court in 2000, capital punishment was confirmed only for four -- Nalini, Murugan, Santhan and Perarivalan.
Nalini's death penalty was commuted to life imprisonment by the Tamil Nadu Governor in 2000 following a recommendation by the state cabinet and a public appeal by Congress President Sonia Gandhi.
The execution of the remaining three convicts, which was scheduled for September 9, 2011, was stayed by Madras High Court. The case has since been with the Supreme Court.