SRK, Deepika Padukone, Rohit Shetty survived on biscuits for a week

King Khan along with his leading lady Deepika Padukone and director Rohit Shetty pratically survived on biscuits while shooting for an important train sequence for the movie 'Chennai Express'. “There was lunch prepared for us but we realized that by the time we were ready for it, it was rotten” a source told.