"One of his obvious strengths at the moment is his confidence is sky high (that's natural) if you have taken the number of wickets that he has done over last year or so in Indian conditions. Cricket is a funny game and a lot of it is played in the mind. He obviously must be flying (high)," said Cook on the eve of the five-Test series opener here tomorrow.
India's premier spin bowler grabbed 27 wickets in a fantastic return in three Tests against New Zealand to grab the man of the series award for the fourth time in his short career.
"Probably he knows his game better than in 2012. Four years down the line of experience and craft (from 2012). You don't just become a world class spinner overnight, it takes time to do that. Graeme Swann was probably the prime example for an Englishman who made his debut early and was probably 8-9 years in the wilderness and he said it helped him develop his spin bowling and probably Ashwin is the same," said Cook.
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Cook said while the England playing eleven was not finalized the tour management had decided to give a Test cap to young opening batsman Haseeb Hameed by sitting down Gary Balance and moving Ben Duckett to the number four spot.
"We don't have a team. I have not had a look at the wicket. It can change in six hours. I can say Haseeb Hameed will play and Ben (Duckett) will bat at four," said Cook thus helping the 19-year-old youngster from Lancashire all set to become the youngest opening batsman and the fifth-youngest Test debutant for England.
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Looking ahead at the Test and the series overall, Cook felt it was a biggie and his side has lived beyond expectations of late.
"It's a big series against India. They have played some good cricket. This England side has always exceeded expectations and hope it does so over next six to seven weeks."
"It's a challenge we have got in these conditions. Those ten wickets (that England lost) in a session was like a real eye-opener for those who have not played in the sub continent or India. Things could change very quickly. Dealing with that pressure with men hovering around the bat when you first go in as a batter, is tough.
Talking about the Decision Review System, to be used for the first time in a series hosted by India, Cook said the best thing was because of DRS the best side in the contest won as it takes away umpiring howlers.
"I think the best thing about DRS is you end up talking about the cricket and not about decisions that affect the game. If there's a bad decision that can be overturned, normally the best side wins, rather than umpiring error becoming the big story. There were some wrong (on-field umpiring) decisions in Bangladesh and DRS took them out and the best side won in both games."
"The change the DRS has done is you have to play with the bat more than the pad, it has brought orthodox spinners back into the game you have to use the bat umpires are now brave to give people out. It's better cricket," he added.