The directive was issued by the foreign ministry following its decision last week to allow Jadhav's family to meet him on December 25 in Islamabad, they said.
The Foreign Office sources said that adequate security measures will be taken for complete safety of Jadhav's family.
An Indian high commission official will be allowed to accompany Jadhav's family during their meeting.
Jadhav, 47, was sentenced to death by a Pakistani military court on charges of espionage and terrorism in April, following which India moved the International Court of Justice in May.
The ICJ halted his execution on India's appeal pending the final verdict by it.
Pakistan claims its security forces arrested Jadhav alias Hussein Mubarak Patel from restive Balochistan province on March 3 last year after he reportedly entered from Iran.
India, however, maintains that Jadhav was kidnapped from Iran where he had business interests after retiring from the Navy.
Pakistan on Wednesday rejected India's plea for consular access to Jadhav at the ICJ, claiming that New Delhi wants the access to get the information gathered by its 'spy'.
Pakistan has repeatedly denied India consular access to Jadhav on the ground that it was not applicable in cases related to spies.
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