Leaders of two of the world's biggest economies, Russia and India, have met Chinese leader Xi Jinping this week. India's Prime Minister Manmohan Singh arrived in Beijing on Tuesday for a three-day business and defence visit. Russia's Prime Minister Dmitri Medvedev arrived hours earlier and Russia signed several oil and gas contracts. Peter Ferdinand, a senior specialist on international relations at Warwick University in England, discusses the ties between China, India and Russia.
