<P> The film became a blockbuster, the top - grossing Indian hit of 1973, the second top - grossing hit of the 1970s at the Indian box office, and one of the top 20 highest - grossing Indian films of all time (when adjusted for inflation). It also became an overseas blockbuster in the Soviet Union, where it drew an audience of 62.6 million viewers, making it one of the top 20 biggest box office hits of all time in the Soviet Union . </P> <P> The film became a trend - setter . It was wildly popular and widely imitated . It introduced to Bollywood the genre of teenage romance with a rich - vs - poor clash as a backdrop . Numerous films in the following years and decades were inspired by this plot . Indiatimes Movies ranks Bobby amongst the' Top 25 Must See Bollywood Films' . </P> <P> The story is about the love between two Mumbai teenagers of different classes--Raj Nath (Rishi Kapoor), the son of a rich businessman Mr. Nath (played by Pran), and Bobby Braganza (Dimple Kapadia), the daughter of a poor Goan Christian fisherman Jack Braganza (played by Prem Nath). </P> <P> The couple first sees each other during Raj's birthday party and meet when Raj goes to see his old governess, Mrs. Braganza . There, he sees her granddaughter Bobby, and it is love at first sight for him . Raj and Bobby go to see a movie but find out it is closed . Then Raj gets an idea to go to a party . At the party, Bobby sees Raj talking to another girl and thinks he is using her . As the story progresses, Raj realises that his relationship with the daughter of a poor fisherman is not taken kindly by his eccentric father . Upon Raj's insistence, Mr. Nath visits Jack to initiate talks of Raj and Bobby's wedding . But instead, Mr. Nath accuses Jack of using his daughter's beauty and charm to trap Raj for his money . He even offers Jack cash to have Bobby stop seeing Raj . Jack feels highly humiliated by this accusation and reciprocates by insulting Mr. Nath . Their talk enters a deadlock and spells doom for Raj and Bobby's tender love . </P>

Who played the female lead role in the movie 'bobby'