The External Affairs Minister Mr. S.M Krishna leaves on a four day visit to China this morning. His visit coincides with the 60 years of India and China establishing their diplomatic relations. <br/><br/>Besides review of bilateral ties and discussion on issues of regional and international issues of mutual concern with his counter part Yang Jiechi, he will call on the Chinese Premier Wen Jiabao . He will also flag of India's festival in China. Our correspondents says that he is also likely to raise the issue of stapled visa and other areas of concern with the Chinese leadership