"KaatruVeliyidai" is running in theaters successfully. There is a sequence in the film where, the Indian prisoners Karthi and his two friends escape from Pakistan Prison and their Army Men. Some online reviewers are quizzing about the authenticity of this sequence. So, here is the true story behind this sequence. According to a press release, the movie shot based on "Four miles to freedom", written by Ms.Faith Johnston. It depicts their real story. Kaatru Veliyidai borrows incidents from this book. Most of what Karthi and his friends do to escape are from real incidents.