South Korea beat India 4-1 in the Asian Cup in group 'C' match in Doha today. The lone goal from India was scored by Sunil Chettri.Meanwhile, Japan got a place in the quarterfinals after beating Saudi Arabia 5-0 on Monday. Japan will play host Qatar on Friday after completely dominating its last Group B match.India, lost their earlier two matches 0-4 against Australia and 2-5 against Bahrain, is out of the competition.Saudi Arabia had already been eliminated.