This analytical monograph is a technical work on the concept of customary international law. We have covered the concept of a Global Customary International Law Index. Traditionally, customary international law is a field in which how states behave and make decisions, the old traditional way is not left unaccounted. In the era of globalization (fourth stage), the purpose of CIL is declining or saturating. It does not anyways mean the end of customary international law – because the transformation of the rules-based international order clearly suggests that there is ample scope for assessing the way international law is widely accepted and put into judicious use by the international community and the ‘subjects’ of international law. This monograph is divided into 9 chapters with a list of references. We have even included an emerging concept in public and private international law, entitled as Soft Law, and have dedicated a special chapter to it.

This work is a part of the series of Global Customary International Law Index, a research initiative by Global Law Assembly, the member-organization of Indic Pacific Legal Research LLP.