Balaji Motion Pictures Ltd., Mohit Suri and Chetan Bhagat Entertainment Pvt. Ltd.’s Half Girlfriend revolves around a love story between a young couple Madhav Jha (Arjun Kapoor) and Riya Somani (Shraddha Kapoor). Because Madhav can’t speak fluent English, he gets admission on the strength of his performance in sports, where he meets the rich Riya Somani.
As luck may have it, when the two fall in love, many unforeseen circumstances arise which play villain to their love story. What are these circumstances does Madhav Jha and Riya Somani be able to tackle them and what happens ultimately to Madhav Jha and Riya Somani is what forms the rest of the film.