A controversy was developed after few days of release. On 31th December 2009, through a blog post, Chetan Bhagat stated that he was told the movie was only 5% based on book, but it was 70% of the book. He claimed that he was misled by the makers. Rajkumar Hirani stated that in a press conference that we have bought the rights for the film and drew a contract with him and clearly mention about the position of his credit. Later Chetan Bhagat Apologized and stated that I am not against 3 Idiots team and end the controversy.