The rehearsals for the seventh season of "Kaun Banega Crorepati" (KBC) have begun and megastar Amitabh Bachchan says `preparation never enough for any creative work`.

`Rehearsing and preparing for KBC... preparation never enough for any creative work, ` he tweeted.

The 70-year-old plays the quiz master in the popular game show and has been associated with it since its inception in 2000, except for the third season in 2007 when superstar Shah Rukh Khan took over as the host.