Swann, who returned here after flying home for a few days to attend to his sick little baby Charlotte, said Cook left messages to his mobile phone asking him to bring his England blazer from home.
But Swann did not check his phone and so did not know about the message and it needed a friend to bring the blazer for Cook who would be wearing it tomorrow when he goes out for toss with his India counterpart Mahendra Singh Dhoni.
"While I was home, Alastair Cook left messages asking if I could bring his England blazer back with me. He'd forgotten it and he needs the blue jacket, complete with England crest, for the coin toss at the start of each Test," Swann wrote in his column for 'The Sun' tabloid.
"But I didn't check my phone -- I had a few other things on my mind. In the end, I believe a friend has brought out Cooky's blazer," said Swann.
He said Cook forgetting his blazer was nothing unusual as cricketers are used to such things before going for a tour.
"We have to pack so much stuff for tours, it's no surprise things are forgotten. Believe it or not, I went to the UAE earlier this year and forgot all my cricket kit. I'd packed three bags and picked up only two of them when I left for the airport.
"So I had my clothes and Test cricket whites, but no bats, pads, gloves or helmet. They were sitting in my hallway and had to be flown out a few days later," said 33-year-old Swann, who has taken 192 wickets from 46 Tests.
Swann said he was now totally focused on the first Test though "two long-haul flights in the space of five days is not ideal preparation for the opening match of a huge series". MORE