I think India are fine playing in ODI matches on pitches like the ones in England. As they showed in the T20 series that they can play on these pitches but in the shorter form of the game. So I think they should be fine in next years World Cup, they just need to work on getting better playing on these pitches in test matches. They will have to do it all again when they tour Australia later this year so its going to be an interesting 4 -5 months for the Indian team.
India has lost the one-day series which has just completed. I believe Indian own the T20 series because of the spin bowler and England batsman took some time to understand his bowling style. If same Indian players play next year world cup in England, I dought that they even go to semifinals.
They need to learn how to play on fast tracks until that this issue will not solve and they can't win outside India against good teams. Also, I heard that after the one-day series all Indian players went to Europe trip and didn't practice (not sure about this news).