What powers does court that stayed Jadhav's hanging have?
India, Pakistan and all other UN members are de facto members of the International Court of Justice (ICJ), and bound by its judgements, though ICJ doesn't have powers to make them abide by the ruling. India can approach UN's Security Council (UNSC) to get the judgement enforced. However, UNSC's permanent members, including China, have veto power to block the decision.