Which Bollywood film directed by Sanjay Leela Bhansali is set in the backdrop of the 2002 Gujarat riots, and stars Ajay Devgn, Aishwarya Rai Bachchan, and Vivek Oberoi?
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None of the above options exactly match the description provided. However, none of the films listed were set in the backdrop of the 2002 Gujarat riots. A film 'Guzarish' was also not set in the backdrop of the 2002 Gujarat riots. Hence the correct film is not in the given options and none of the given films match the description provided.