US President Joe Biden, right, and Narendra Modi, India’s prime minister, at an arrival ceremony during a state visit on the South Lawn of the White House in Washington, DC, US, on Thursday, June 22, 2023.Bloomberg | Bloomberg | Getty ImagesIndian Prime Minister Narendra Modi has turned the normally sedate rotating presidency of the Group of 20 nations into a branding vehicle to burnish India’s geopolitical importance — underscoring India’s emergence as a key voice on the world stage.The country’s diplomats now face a race against time to broker tangible multilateral outcomes at this weekend’s G20 leaders’ summit in New Delhi that will mark the end of India’s year-long presidency of the bloc of leading industrialized and developing economies.India has so far not been able to foster consensus for a joint communique from the previous G20 meetings in other major tracks that it has convened. Membe …