The hearing of the case in Anti-Terrorism Court (ATC), Rawalpindi, by Justice Pervez Ismail was held yesterday inside Adiala Jail of the city due to security reasons.
Federal Investigation Agency (FIA) Peshawar Inspector Naseer Ahmed and Sub-Inspector Adnan told the court about the involvement of Darul Uloom Haqqania's students in the killing of Benazir, Dawn News reported.
Both the state witnesses also presented related evidence to support their statements.
He said the suspects had left the seminary before completing their education.
The seminary located at Akora Khattak in Nowshera district of Khyber-Pakhtunkhwa is owned by Sami-ul-Haq and it has produced several high profile Taliban leaders and fighters, including Jalaluddin Haqqani the founder of feared Haqqani network.
The alumni of the seminary use "Haqqani" with their name.
Haq also served many times as a member of Parliament and is still active and headed the team which held talks with Pakistani Taliban after Prime Minister Nawaz Sharif announced to hold negotiations with them last year.
Benazir was killed in gun and bomb attack in 2007 in Rawalpindi.
The special court has so far conducted more than 300 hearings and indicted several people, including former military ruler Pervez Musharraf, in the case.
