In the Group 'B' matches of the Cricket World Cup today, India beat Ireland, while England defeated South Africa.In Bangalore, a superb all-round performance by Yuvraj Singh helped India beat Ireland by five wickets in their third World Cup encounter. In the Day-Night fixture, chasing a modest target of 208 runs, India ahieved victory in 46 overs by making 210 for five. Earlier, put in to bat, Ireland had made 207 in 47.5 overs.Yuvraj who remained unbeaten on 50, after a fine bowling analysis of five for 31, was declared ' Man of of the Match' .India now top Group 'B' with 5 points from three games. With one victory in three matches, Ireland have Two points.Earlier, in a thrilling match at Chennai, England defeated South Africa by Six runs. Chasing 172 runs for a win, South Africa managed to score only 165 in 47.4 overs.England now have Five Points after playing Four Matches. South Africa are on Four Points from Three Encounters.