The announcement by Sartaj Aziz came amid criticism by experts and opposition leaders over the government's handling of the case at the International Court of Justice.
The Hague-based court had yesterday stayed the execution of Jadhav, 46, considered to be a spy by Pakistan.
The UN's highest judicial body also asked Pakistan to take "all measures" to ensure that Jadhav, sentenced to death by a Pakistani military court for alleged espionage, was not executed till the court had delivered its final verdict on the issue.
Aziz, however, maintained that Qureshi had "courageously" presented Pakistan's case in the court, the Nation reported.
He said the ICJ had given its point of view on Jadhav's case to get counselor access.
"Pakistan's security is so important and we have to maintain our fundamental sovereign right," Aziz was quoted as saying by the daily.
Pakistan, which announced the sentence on Jadhav on April 10, claims its security forces arrested him from its restive Balochistan province on March 3 last year after he reportedly entered from Iran. However, India maintains that he was kidnapped from Iran where he had business interests after retiring from the Navy.
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