The actor is an ardent follower of cricket, and this blue t-shirt is one that he always wears while watching India play during a critical match. Especially during the world cup he makes it a point to cheer for team India wearing his favourite blue t-shirt. His lucky t-shirt also favours team India, so whenever he wears it they win the matches.
However, this time he is a bit upset over the fact that he can't wear his lucky t-shirt anymore because of his bulky body. He tried wearing it but the t-shirt did not fit him at all.