Kapoor was present on the first anniversary of Rujuta Diwekar's book on fitness, Don't lose your mind, loose your weight in Mumbai on Sunday.
Kapoor, who has contributed to some portions of the book, told reporters that she is turning into a writer.
"What makes me really proud and happy is that a book that Rujuta has written on fitness is actually been the number one bestseller. I am really happy with it and glad that people enjoyed my foreword, because I did write, and she is writing another book as well in which I am going to be writing, as well. So, I am actually excited that I am actually going to become a writer now from an actor," said Kareena.
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