It is one of the best movie of director Rajkumar Hirani. I love this movie so much. The history of this movie is about three friend. They all are engineer. They do not like to go college and principal do not like them. Here the acting of the principal was just amazing.
Amir khan acting was too good.Both seriousness and fun both have in this movie. Basically if you are a engineer you must like it. I love more the concept of the helicoptor. It is just an amazing movie you can learn something.