Shah Rukh Khan did not appear in some of the shots in this song featuring him and Preity Zinta. Years later, the song's choreographer, Farah Khan, revealed that they had to film some portions of the song without Shah Rukh because he had not shown up for the shoot. According to her, he developed cold feet because she had told him that he would have to emerge out of the water wearing just a dhoti. Shah Rukh's explanation for not making it to the shoot was that he had lost his way.[1]
When Lata Mangeshkar visited Chennai to record this song, lyricist Gulzar was the only person she knew at A.R. Rahman's studio. Lata could not see Rahman in the mixing room from the singer's cabin. She was used to being able to visually communicate with music directors during recording and was very uncomfortable with this setup. Seeing her discomfort, Gulzar sat outside the glass door of the singer's cabin. Since he could see Rahman from this position, he proceeded to act as the sounding board between the singer and the music director.[MR29]
A.R. Rahman had shared a preliminary recording of this song with Gulzar and asked him to translate the Malayalam language chorus in the interlude to Hindi. Gulzar liked the chorus so much that he suggested that the Malayalam chorus be retained as is and Rahman accepted his suggestion.[MR29]