Half girlfriend is a book.It is a book based on the love story and was written by Chetan Bhagat . He is a renowned writter of India. I have already read this book and what I have found its a heart breaking love story . Its love story between bihari boy Madhav and delhi girl Riya. Riya can speak English well but Madhav can not .Madhav wanted relationship but Riya did not .She only wanted Friendship and this type of romance are very much popular as I think. You all may read this book.