Oscar-winning director Danny Boyle is reassembling his ''Slumdog Millionaire'' team to make a new movie on Mumbai, his scriptwriter has disclosed.

Simon Beaufoy, who bagged an Academy Award for Slumdog's screenplay, has disclosed that Boyle has bought the rights for another book about India's commercial capital called "Maximum City: Bombay Lost and Found", written by Suketu Mehta.

"It was only decided a couple of weeks ago, but I will be writing the script for Danny," he told.

"Maximum City is a non-fiction work, so it will be a huge challenge to find the story in it. It is a magnificent book and I used it in my initial research for Slumdog. There are some great characters in the book, but no stories, so my job will be to get the fictional out of a non-fictional story."

The book is part travelogue, part memoir and gives a colorful overview of Mumbai's history and people.

Beaufoy told he was discussing the need for huge creative license in adapting the book for the big screen.

"Suketu is very understanding about my creative input and flexible about many changes. I will have to come up with something to bring together all the characters from the book into something that can make a film," he told.

Beaufoy said that the real star of the movie would be Mumbai itself.

"It's such a vibrant, young city. Whereas in London, everything is in a sense hidden away, in Mumbai its just all there in the open - all the emotion, all the characters," he told.