Acting Pakistani High Commissioner Samina Mehtab was summoned to lodge a formal protest against a statement issued by the Pakistan Foreign Ministry, the Daily Star reported.
In a statement issued late on Saturday, after the execution of Jamaat-e-Islami leader Mir Quasem Ali, the Pakistan Foreign Ministry said the act of suppressing the opposition through "flawed trials" was completely against the spirit of democracy.
"Ever since the beginning of the trials, several international organisations, human rights groups, and international legal figures have raised objections to the court proceedings, especially regarding fairness and transparency, as well as harassment of lawyers and witnesses representing the accused," the statement said.
It said, "The government of Bangladesh should uphold its commitment, as per the Tripartite Agreement of 1974, wherein it decided not to proceed with the trials as an act of clemency."
"Pakistan believes that such matters should be addressed with a forward looking approach in the noble spirit of reconciliation," it said.
Pakistan also offered deepest condolences to the bereaved family members, it said.
Pakistan had earlier issued similar statements after the execution of war criminals to which Bangladesh had reacted by summoning the High Commissioner to the foreign office.
Bangladesh has also asserted that Pakistan continues to present "a misleading, limited and partial interpretation" of the Tripartite Agreement of April 1974, reported bdnews24.
Pakistan Jamaat-e-Islami also reacted to the execution and cautioned that Bangladesh Prime Minister Sheikh Hasina will meet a similar fate.
In a Facebook post in Urdu language, the party of which Bangladesh Jamaat is an offshoot said they would hold a funeral prayer in absentia for Mir Quasem.
Quasem was hanged at 10.30 p.m. (local time in Bangladesh) at the Kashimpur Jail.
Prior to the execution, Quasem's wife Khondokar Ayesha Khatun after meeting her husband for the final time on Saturday, told reporters that "those responsible for impending death of my husband will not win."
