NEW DELHI : India's Manmohan Singh embarks Sunday on one of his last major foreign trips as prime minister, heading to Russia and China to strengthen trade ties and address a long-running border dispute. The 81-year-old, who is expected to stand down after elections next year, will look to clinch energy, defence and other economic deals in both countries as New Delhi tries to boost trade and investment to kick-start sluggish growth.

Singh will also seek a breakthrough on the border dispute with China that has soured ties for decades, after the leaders of the two Asian giants pledged earlier this year to build up trust.