This article explains the role of norms in IR with respect to particular focus on the bilateral security relationship between India and Japan since 2000. The article deals with the following questions, which are the normative driving factors between India and Japan to come together and cooperate? And how are those norms playing a major role in bringing them together? The article also analyzes the three liberal assumptions made by Andrew Moravcsik with Indo-Japan. And at the conclusion, it asserts that norms have been playing a major role between Indo-Japan relations since 2000.