India hosted the G20 Leaders' Summit in New Delhi on September 9–10, 2023, under the presidency theme 'Vasudhaiva Kutumbakam — One Earth, One Family, One Future.' The summit achieved a landmark consensus on the New Delhi Declaration, adopted by all 19 member nations plus the European Union. A significant diplomatic achievement was the language agreed upon regarding the Russia-Ukraine war: the Declaration referenced the suffering caused by the conflict and the UN Charter's prohibition on the acquisition of territory by force, without explicitly attributing blame to Russia — language that allowed both Russia and Western nations to endorse the declaration.
The summit also saw the historic inclusion of the African Union as a permanent member of the G20, elevating it from observer status. India championed this expansion as part of its broader advocacy for the Global South. Key outcomes included agreements on green hydrogen, digital public infrastructure, and sustainable development financing.
Prime Minister Modi announced the India-Middle East-Europe Economic Corridor (IMEC) at the summit — a proposed connectivity project linking India to Europe through the Middle East via rail and shipping networks. The corridor is seen as a potential counter to China's Belt and Road Initiative.