Vidya Balan and Aishwarya Rai hardly interact on the sets of Mani Ratnam's 'Guru'. They keeps locked up in their respective make-up vans. So, she talks to Mithun Chakraborty and Madhavan most of the time. The reason is Abhishek was lobbying for Ash for Shaad Ali's next film 'Jhoom Bababar Jhoom'. But Shaad finalized on Vidya.