Modi brings yoga diplomacy to G20 summit Stepping away from the sealed security zone and ceremonial pomp of the Group of 20 summit, Indian Prime Minister Narendra Modi brought a message dear to his heart to host Argentina -- the value of yoga. With the sound of rush-hour traffic audible outside, about 4,000 yoga practitioners in Buenos Aires took to their mats in a convention hall to hear Modi as well as a troupe of 70 Indian musicians.