"Half Girlfriend" is a novel written by Indian author Chetan Bhagat. The story revolves around the life of a young man named Madhav Jha, who falls in love with a girl named Riya Somani. The narrative explores themes of love, friendship, and the complexities of relationships, particularly focusing on the concept of being in a relationship that is not fully committed. Set against the backdrop of Bihar and Delhi, the book highlights the challenges faced by the characters as they navigate their feelings and societal expectations. It delves into issues of language barriers, cultural differences, and personal aspirations, making it relatable to many young readers.