Half girlfriend is very serious story of bihar.The main character in this movie is madhav who is a basketball player and another is riya somani who belongs to rich family.One day when madhav come for higher studies.He shows riya at that instant.He love her.but he had no will power for saying his love to riya.Riya also a good basketball player.Incidently, riya and madhav both played basketball together.At this time, they both will be a friend together.slowly his story going on riya accepted that she is the half girlfriend of madhav.Riya’s parent arrange his marriage to a foreigner.the breakup comes between riya and madhav but Riya devoshed his husband at last and sung a song in the bar of london.Madhav run everywhere but at the last stage he finds riya and make their life peaceful with her.