Actress Sadiya Siddiqui revealed she had initially refused to play Shah Rukh Khan's sister in 'Kabhi Haan Kabhi Naa' because she was in love with him. She told director Kundan Shah, "I don’t have those feelings for him. And in my eyes, you’ll see...real feelings, and that wouldn’t work." "Kundan laughed and said, ‘No, you’ll play the sister'," she recalled.