England batsman Dawid Malan said Indian bowlers are subtly different from each other, making it nearly impossible for batsmen to fully get used to them.
The India pacers were better than their English counterparts in the intensely-fought Test series recently with the visitors were leading 2-1 before the fifth match because of COVID-19 cases in the Indian camp.
Malan, who made a Test comeback in the series after three years, said the likes of Jasprit Bumrah, Mohammad Shami and Mohammad Siraj are different from each other and batsmen struggle to cope when they bowl in tandem.
"They have all been pretty tough. I think the one thing about this Indian attack is they are all slightly different. They all have different release points and different things they do with the ball, which makes it so challenging you know you can never get used to (them)," Malan told said.
"If you think you are getting used to one of them, they just come at you with different challenges all the time so you know it's really tough to pick them. They have all been really, really good this series," the batsman, who has pulled out of the IPL ahead of the T20 World Cup, said.
The southpaw, who lent much needed solidity to England's struggling batting line-up, was also happy that senior off-spinner Ravichandran Ashwin was not part of the series.
"It's not because he's not a great bowler, he is a serious bowler. He is one of the best spinners that's ever played the game, but you know, it's hard for me to comment on why he wouldn't be playing," he said when asked if he was surprised about Ashwin missing all the four Tests.
"...If you look at the conditions and if you were playing two spinners he would probably be tougher (Ravindra Jadeja). I guess the captain, or the leadership of the Indian team probably had the decision to make between Jadeja or Ashwin and they went the other way.
"They led 2-1 so you know you can't really argue (with that decision). I am quite happy as a left hander that he did not play, which is pretty good," said the World's No 1 T20 batsman.
Talking about his Test comeback, Malan wasn't completely satisfied with his performance though he looked assured in the middle from the word go.
"Yes and no. You know, to get a score in that first Test was good.. disappointed not to (have) capitalised on that one to score a hundred. It was a really good batting wicket so to get out the way I did this was obviously disappointing," he said.
"And then the first innings at The Oval. To get to 30 once again on a wicket that was playing well and to get out was tough, was disappointing from my point of view. You know I have come in, I feel like I have hit the ball well I have moved well," he added.