Madhubala had a long affair with actor and frequent co-star Dilip Kumar. They first met on the sets of
Jwar Bhata (1944), and worked together again in the film
Har Singaar (1949) which was never completed or released. It was two years later during the filming of,
Tarana (1951), that their off-screen relationship began. They also became a popular romantic screen team appearing in a total of four films together. (Wikipedia)