Kajra Re is a song composed by Shankar–Ehsaan–Loy, written by Gulzar and sung by the playback singers Alisha Chinoy, Shankar Mahadevan and Javed Ali. It is from the 2005 film Bunty Aur Babli, starring Amitabh Bachchan, Abhishek Bachchan and Rani Mukerji. Aishwarya Rai plays a courtesan trying to express her desires to attract the male, or her client. From Wikipedia