dear rajesh kumar u had mentioned about excellant team combination. But in the middle of tournament u cant expect many changes. Hence, the team combination could be (with batting order) like :
Since Dhoni is not in form he should bat at lower down the order. Still i insist for karthik becoz he is good batsmen with storng mindset. If he will open the innings he can atleast keep his strike rate at 100.00 and rotate the strike for hitters.