• Producer : Shobha Kapoor , Ekta Kapoor
• Director : Mohit Suri
• Writer : Chetan Bhagat
• Screenwriter- screenplay : Tushar Hiranandani
• Dialog Writer : Ishita Moitra Udhwani
• Composer : Tanishk Bagchi
• Lyricist : Arafat Mehmood , Tanishk Bagchi , Kumaar
• Actor : Arjun Kapoor
• Actress : Shraddha Kapoor

Madhav is a good basketball player who cannot speak English well. He gets accepted into St Stephen's College Delhi based on a sports quota where he meets Riya Somani, an upper-class young girl who is allowed temporary admission based on a sports quota. They become good friends and play basketball every evening. When Madhav tells his roommate Shailesh and friends about Riya, they push him to ask Riya out for a date, but she refuses and asks him just to be a friend. Madhav's friends still encourage him to pursue Riya in the hopes that she will eventually date him. One night Madhav and Riya hang out together. Madhav picks her up from her house, and after spending the evening together, when she returns home, she kisses Madhav before entering her house. When Madhav attends Riya's birthday, he questions her about the nature of their relationship. Uncomfortable, Riya says that she is not his girlfriend, but they can maybe reach a compromise since they have reached halfway, and she offers to be his "Half Girlfriend." One afternoon after a game Madhav asks Riya if she would like to rest in his room in a boys only dorm, (goaded by his peers and feeling humiliated by Riya’s uncertainty) Madhav tried to force himself upon Riya. Upset and hurt a few days later, Riya tells Madhav that she is leaving college and getting married. Madhav tries to stop her but she leaves. After completing college, Madhav goes back to his village where Madhav's mother runs a school where only boys study because there are no girls' toilets. Madhav learns that Bill Gates is coming to Patna and will be funding grants to schools. Madhav decides to apply for a grant, for which he goes to Chanakya hotel in Patna. After the meeting, Madhav meets Riya, who is living in the hotel and works for Closeup. They hang out for some time, and Madhav learns that Riya has divorced because her husband and his mother tried to beat her. As Madhav needs to give a speech in English for Bill Gates, Riya helps him prepare for it. One day, he takes her to his house, where Madhav's mother asks her about her marriage. She acts rudely after discovering that she is a divorcee. A few days before the speech, when Riya has to go back to Patna, Madhav's mother asks her to stay away from Madhav. She, however, attends Madhav's speech, where he is successful in getting a grant from the Bill Gates Foundation. After the speech had ended, a small girl from the school hands a letter from Riya to Madhav. The letter says that Riya has been diagnosed with blood cancer and will die in three months. She requests him not to search for her as she herself does not know where she will go. Madhav is seen going to Riya's house to deliver her belongings to her mother, who starts crying on learning about Riya's disease. Madhav recalls that she wanted to become a singer at a bar in New York. Unprepared, Madhav goes to New York to visit his friend Shailesh. Shailesh and his wife Rutvi learn about the incident and try to deviate Madhav's attention from Riya. Rutvi tries to set him up with Anshika, her friend. They spend some time together. Madhav tries to find Riya for three months continuously, until his time runs out. On the last day, when he was attending his farewell party, he sees a video where Anshika, who had fallen in love with him, thanks him for being a part of her life. In this video, Madhav sees a blurred picture of Riya singing in a cafe. He runs to the café and finds Riya. They reconcile and consummate their relationship. Riya explains she had lied to Madhav about being sick as his mother didn’t want Riya, a divorcee to be with her son. A few years later, Madhav is seen talking to his mother about opening a new school, and Riya helps their daughter learn to play basketball, but she is unable to do it. Riya tells her daughter never to give up.

• Track 1 : Baarish ( बारिश )
• Track 2 : Thodi Der ( थोडी डेरे )
• Track 3 : Tu Hi Hai ( तू ही है )
• Track 4 : Phir Bhi Tumko Chaahunga ( फिर भी तुमको चाहूंगा )
• Track 5 : Pal Bhar(Chaahunga Reprise) ( पल भर (चाहंगा रिप्राइज) )
• Track 6 : Lost Without You ( तुम्हारे बिना खोया हूँ )
• Track 7 : Stay a Little Longer ( थोड़ी देर और ठहरो )
• Track 8 : Mere Dil Mein ( मेरे दिल में )
• Track 9 : Half Girlfriend(Half Girlfriend - Love Theme) ( हाफ गर्लफ्रेंड (हाफ गर्लफ्रेंड - लव थीम) )
• Track 10 : Mere Dil Mein(Dialogue Version) ( मेरे दिल में (संवाद संस्करण) )
• Track 11 : Phir Bhi Tumko Chaahungi ( फिर भी तुमको चाहूंगी )
• Track 12 : Manzoor Hai(T SERIES Zee Music Special) Ami Mishra ( मंजूर है (टी सीरीज जी म्यूजिक स्पेशल) )
• Track 13 : Baarish (Atif Aslam Version) ( बारिश (आतिफ असलम संस्करण) )