India, Jan. 27 -- India's new mega free trade agreement with the European Union is more than just a commercial breakthrough; it is a strategic moment that underlines the arrival of a genuinely multipolar world order. At its core, the pact ties together two of the world's largest economic blocs, but its real significance lies in the political message it sends and the future architecture of global trade and security it begins to shape.

The agreement creates one of the world's largest economic partnerships, covering a combined market of roughly 2 billion people and nearly a quarter of global GDP. For India, it plugs the last major gap in Prime Minister Narendra Modi's long-articulated vision of a multipolar world in which New Delhi is not a...