India need to be cautious regarding the World Cup. Even though, they'll be playing on flat pitches, but the South African defeat has exposed loopholes in the Indian lineup, particularly the middle order.
Starting XI for me :-
1.Gambhir
2.Sehwag
3.Sachin
(These three are interchangeable)
4.Kohli
5.Dhoni
6.Raina/Yuvraj
(The above three can interchange as per the situation)
7.Yusuf
8.Praveen
9.Harbhajan
10.Zaheer
11.Nehra
I'd prefer Raina over Yuvraj, but Yuvraj has done more with ball than with bat, so he could be a pivot at no.7 or 8, if our pacers fail.