From 129 for one to be bundled out for 176, England batting fell like nine-pins against the Indian spinners' guile to lose the fifth and final ODI by 95 runs on Tuesday. Cook appeared surprised with another meek submission by their batsmen.
"It's really a bit of shocker. Incredible. We have not batted well in the entire tour. Batting is one of the team why we lost many games," Cook said.
In fact England lost by the same scoreline the last time they toured India, in 2008.
Cook said the past is past but this time they were a bit short on experience on Indian conditions.
"Not many of us have played here. The bowl does not come quite well in these conditions. Winning is a habit and losing is also a habit. When the confidence is not so high, it's not easy."
"India's confidence is high. They are playing some decent cricket and it's hard to stop them."
But Cook praised his bowlers and said lanky pacer Steven Finn has been the find of the series.
"We bowled really well again. The way we kept trying has been impressive. The credit goes to our bowlers."
"Morale can't be as high when you lose. But the past is past. Be it five or 10 games. We came a lot way short. A lot of these guys toured India for the first time. It's a first experience to these condition."
"We played some decent cricket there. We struggled in their condition, they struggled in our condition."
"It's tough as a captain. When you lose you take fair bit of responsibility. I can't ignore the way players played in this tour."
On the poor turnout, Cook said too much of India-England cricket may be the reason.
"Seemingly for a long time we are playing each other, people must have been bored."
"It's been a fantastic year for English cricket. But obviously a disappointing end to what's been a good year.
"Finn has been outstanding bowler. He has been our stand-out perfomer in this series. In big picture, we had an inexperienced players. But there are positives to take from the series."
Cook said Virat Kohli, Suresh Raina and Mahendra Singh Dhoni were India's standout performers.
We did not bat well in the entire tour: Cook
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