What is the reason for India's dismal batting against WI??

Your qusetion itself contains the answer to your query so I dont believe I have much to add on .I guess the multitude of reasons you cited have all been responsible to some extent for this abysmal batting performance. They are clearly too fatigued,the opening combo havenot really fired,Yusuf Pathan and Ravindra Jadeja are still too inexperienced . So barring Yuvraj singh our batting is going through a lean phase . But they had a four day break so I am counting on them to bounce back strongly

I think that Indians have lacked consistency. This is true even though they sound cliched. Sometimes, they are too laidback that they think some things happen for granted. But in this world, nothing is granted as it is evident from IPL or T20 World cup. I think Rohit needs to change his batting style or come down the order. Also, pace bowling is not upto the mark. Fielding is as usual will not meet the standards of South africans or Australians.

In my opinion today we every cricket nation is playing too much games and India too. our players need some relaxation to get back in form.after ipl2 and world cup 20-20, audience also get bored and for players it is very natural.that's why they are not able to give their 100% performance.

absence of sewagh will affect the opening & gambirs cricket
some change has to be done in the indiar team .give chance to players like abhishek nair,murali vijay,irfan

hi vishwen, there are many things for our poor show..first dhoni mislead the pitch and opt for batting wherin we should have chased in fast track..next we miss sehwag n this types of pitch and absence of him put lots of pressure in gambhir...jadeja should have been replaced by pathan.... the list goes on but the show put up by skipper cools us..hope the best in near future..