But the director of the film later clarified that the film was loosely based on the book and not the exact copy.
Although Bjhagat's book was a bestseller, the film was did average business at the Box Office.
When the promos of Rajkumar Hirani's '3 Idiots' came out, it was widely reported that the film was based on Bhagat's first novel '5 Point Someone'.
Starring Aamir Khan, Sharman Joshi, R Madhavn, Boman Irani and Kareena Kapoor, the film was based in an engineering college presumably IIT. The book was semi autobiographical as Bhagat is an IIT alumni.
Abhishek Kapoor's 'Kai Po Che!' is perhaps one of the most awaited films of 2013. Starring relative new comers like Sushant Singh Rajput, Rajkumar Yadav, Amit Sadh and Amrita Puri, the film has garnred good reviews even before its release.
The Gujarat earthquakes of 2001 and the Gujarat riots of 2002 play important part of the narrative.
Based on the lives of call centre employees, the film had an ensemble cast consisting of Gul Panag, Sharman Joshi, Sohail Khan, Amrita Arora, Sharad Saxena and Esha Kopikar.
The film is based on Bhagat's third book 'The 3 Mistakes of My Life' and narrates the story of three friends.
The film was recently premiered at the Berlin International Film Festival, where it earned critical appreciation.
Bhagat's fourth book '2 States' is also being made into a film. Karan Johar and Sajid Nadiadwala have teamed up for the film which will feature Arjun Kapoor and Alia Bhatt in the lead role.
His books are bestsellers and all of them have been made into feature films. As Chetan Bhagat's 'The 3 Mistakes Of My Life' gets a screen adaptation in Abhishek Kapoor's 'Kai Po Che!', we look back the other films that have been based on Bhagat's books.
Directed by former actor Atul Agnihotri, 'Hello' was based on Chetan Bhagat's second book 'One Night @ the Call Centre'.
The film mostly stuck to the exact plot of the book and featured Salman Khan and Katrina Kaif in cameo roles.
The film eventually gave credit to the author during the film's closing credits.