India suffered defeats in the fourth round of the 39th Chess Olympiad at Khanty Mansiysk, Russia on Friday. Grandmaster, Krishnan Sasikiran and Surya Shekhar Ganguly both lost their fourth round matches against Russia's second team.Sasikiran was on the receiving end against Ian Nepomniachtchi while Ganguly went down to Nikita Vituigov.With as many as 14 leaders before the start of the fourth round, the Indian men are likely to slip quite far from the joint leader status. Indian women's team also lost fighting against their Bulgarian counterparts.