India’s emergence as the anchor of Britain’s post-Brexit global strategy marks a decisive turn in London’s Indo-Pacific engagement. Through the Comprehensive Economic and Trade Agreement (CETA) and the “India-UK Vision 2035,” both nations are translating diplomatic symbolism into structured, institutionalised cooperation. Anchored in trade, defence co-development, and technology, this partnership reflects a pragmatic recalibration of middle-power agency. It positions India and the UK as pivotal actors in shaping a rules-based, multipolar Indo-Pacific order grounded in connectivity, innovation, and strategic balance.