England head coach Andy Flower feels the maturity of their One-day side's skipper Alastair Cook will prove vital to team's success in the upcoming series in India. England will fly out to India today with Cook looking to repeat the team's success at home.

"He's (Cook) been excellent as a leader and grown in confidence," Flower told Daily Express. "It's always nice to see someone grow in confidence, is a really nice thing, particularly for us coaches" said Flower.