Tamannah Bhatia, one of the most sought-after actresses, will be seen playing a personal assistant to Nagarjuna in Oopiri.  In this interview, the milky beauty talks about how she prepared for the role, why she volunteered to dub for the first time, how it was working with Karthi, what regret she has about Mr.Perfect, and more.

What kind of homework did you do for the role in 'Oopiri'?