Ranbir Kapoor is seen whistling the number 'Tu Hai Ki Nahin' in his upcoming film, 'Roy'.
Sung by Ankit Tiwari, the track initially did not feature Ranbir’s whistle.
The tune of the whistle was incorporated later when Ankit heard a few children of an NGO whistle and he felt it would go well with the song.
A musician seeks inspiration everywhere.
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