--> By Arvind Sundaram, Ashok Kumar
Director Siva's camp has approached Sai Pallavi to play a pivotal role in AK57, but the Premam actress couldn't accept the offer, as she had already given dates for Director Sekhar Kammula's Telugu film.
http://behindwoods.com/tamil-movies-cinema-news-16/sai-pallavi-will-not-be-part-of-thala-57.html