It is based on real life story of chetan bhagat. He is a very good writer. It a love story of two different communities. What happened between them, what happened between their lives, is in that movie. How their love life totally destroyed by their families.
You can watch this movie with your friends and family also. One can feel how beautiful their life was but in the middle of the movie it become worse and as we all know about indian movie they comes with an happy ending, likewise this movies has also a happy movie and I recommend you if you have not watched it yet.