Deewana movie is the love triangle between Ravi, Kajal and Raja. Ravi is a popular pop-singer in the region, and has many fans, of both sexes. One of his fans is a beautiful young woman named Kajal, who is in love with Ravi and his songs. When Ravi meets Kajal, he too falls in love with her, and soon both get married.
After the marriage, Ravi's uncle hires some men to beat him up and kill him. They return, informing him that they have succeeded in their objective. Kajal is devastated with the new of Ravi's death, and assumes the habit of a Hindu widow. Then one day she meets with wealthy Raja Sahay, who has fallen head-heels in love with her, and proposes marriage. Shocked by this, Kajal initially refuses, but eventually agrees to marry him. Romance and living return to Kajal's life, but not for long, when Ravi returns to her life, and is shocked to see her re-married.