Europe, the Middle East and India will on Saturday unveil plans to create a modern-day Spice Route, boosting trade ties with potentially wide-ranging geopolitical implications.

G20 leaders have called on all states to "refrain from the threat, or use, of force to seek territorial acquisition" and ruled the threat of use of nuclear weapons "inadmissible" - a discreet critique of Russia's war on Ukraine.

UK PM Rishi Sunak's wife Akshata Murty and World Bank President Ajay Banga's wife Ritu Banga were among the delegation of first ladies and spouses of G20 leaders who visited the IARI campus.