Four prisoners were sentenced to death by an anti-terrorism court (ATC) on Tuesday for their involvement in an attack on an Inter-Services Intelligence (ISI) office in 2009.
The four convicted persons are Abdul Raheem, Salman, Afzal and Sajid.
Militants armed with rocket-propelled and hand grenades and a car bomb attacked an office of the ISI in 2009, which left 32 people dead, including security personnel.
During the attack, militants fired a rocket-propelled grenade at a checkpost outside the ISI office, then threw hand grenades and set off their car bomb.
The militants had also admitted during interrogation that former prime minister Yousuf Raza Gilani, former foreign minister Shah Mehmood Qureshi and former religious affairs minister Hamid Saeed Kazmi had also been on their hit list.