Reacting to the order, Pakistan's Foreign Office said the country does not accept the International Court of Justice's jurisdiction in matters related to national security.
The head of Pakistan's delegation at the International Court of Justice said it was a "basic ruling" and said the UN court had not mentioned anything about maintainability of the order.
Asked by reporters outside the ICJ if Pakistan will stay Mr Jadhav's execution as ordered by the court, Pakistan's Moazzam Ahmad Khan initially did not reply. He then said that the ruling was "basic". He did not comment on the merits of the case.
In major relief for India, the International Court of Justice on Thursday ordered Pakistan not to execute Mr Jadhav till a final decision is taken.
Judge Ronny Abraham, President of the court, also asked Pakistan to inform it of all the measures it has taken to implement the order.
India had sought the court's intervention for an immediate suspension of Mr Jadhav's death sentence, fearing that the Indian national may be executed even before the ICJ decided the case.
Mr Jadhav was awarded the death sentence by a Pakistani military court last month, a year after he was arrested on espionage charges. Islamabad has rejected 16 Indian requests for consular access to Mr Jadhav, held at an unknown prison in Pakistan.
(With inputs from IANS)