Xi told Modi that China and India should be partners, not rivals, while Modi said there was now an "atmosphere of peace and stability" between them. Russian President Vladimir Putin is also at the summit, attended by more than 20 world leaders, which this year has been overshadowed by trade wars with the US.

Border issues should not be the defining factor in China-India ties, Chinese President Xi Jinping told visiting Indian Prime Minister Narendra Modi on Sunday, saying the relationship required a "strategic and long-term perspective".