International law is developed to bring all nations in the world under one umbrella due to medieval constraints of sovereignty of the Nations have been diluted and it has voluntarily surrendered their jurisdiction to international law governing organizations. Since the traditional theory to international law is governed State alone its subject. This concept now is diluted and covered individuals and all international organizations under it. Due to shrinking of the world in trade related sectors such as rendering services to all nations through trade and services, now it emerged as trade rules under public international law. The aim of the article is to analyze the role of public international law in World Trade Organizations disputes settlement mechanism in particular and in turn to discuss a creation of rules in public international law, rules of WTO, relationship between the rules of public international law and WTO rules, the nature of WTO dispute settlement mechanism and its jurisprudence and dispute settlement mechanism in general.

Keywords: WTO; Dispute; International Law; Settlement; DSU.