This is a feel good and relatable book for students and adolescents all over India and the world. It's not very deep and there is an ending which will make you happy but is not necessarily realistic. But then again, love is seldom real - it is mostly in our minds.
This book is not Chetan Bhagat's best book, but it is worth reading if you have a couple hours and you want a pleasant feeling at the end of the book.