India has increasingly emerged as an active contributor to global decision-making, particularly through its participation in the G20. This paper looks at how India has moved from simply following international norms to taking part in shaping them. During this period, India drew attention to sustainable growth, digital innovation, fair climate action, and better representation for developing nations. It also encouraged discussions on debt relief, clean energy, and reforming global institutions. India has increasingly emerged as a proactive contributor to global decision-making, particularly through its engagement with the G20. This paper examines India's transition from being a rule-taker in the international system to becoming an influential rule-shaper in global governance. The study focuses on India's G20 Presidency in 2023, guided by the theme "Vasudhaiva Kutumbakam – One Earth, One Family, One Future." Through this presidency, India foregrounded inclusive development, digital public infrastructure, equitable climate action, and enhanced representation for developing countries. The paper argues that India used the G20 not merely as a platform for participation, but as a strategic space to reshape global norms, priorities, and institutional discourses. By analysing official declarations, policy initiatives, and comparative leadership approaches, the study evaluates the broader implications of India's G20 leadership for the future of multilateral governance.