The first Pakistani who became the judge of International Court of Justice (ICJ) was?

The first Pakistani who became the judge of International Court of Justice (ICJ) was?

عالمی عدالت انصاف کے جج بننے والے پہلے پاکستانی تھے۔
Explanation

Upon the independence of Pakistan, Zafrulla Khan became the new country's minister of overseas affairs and

served simultaneously as chief of Pakistan's delegation to the UN (1947–54).

From 1954 to 1961 he served as a member of the international court docket of Justice on the Hague.