"That's right," confirmed Advani. "Deepika is doing a double role in my film."

This would be Deepika's second double role after her debut "Om Shanti Om".

When quizzed him about the music of the film, Advani told IANS: "While the rest of the score by Shankar-Ehsaan-Loy, with a little help from Kailash Kher, is completely original, we've used Bappi Lahiri's 'Bombay se aaya mera dost' from the film 'Aap Ki Khatir'. Bappi has reworked and re-sung the song."

Advani's directorial debut "Kal Ho Naa Ho" was a runaway success at the box office, but his second film "Salaam-e-Ishq" was letdown.

"Chandani Chowk to China" is a mega-budget film and is produced by Warner Brothers and Rohan Sippy.