According to sources, Ileana had reportedly demanded a whopping Rs 1 crore as remuneration for pairing up with Nagarjuna. Buzz is that Nag got into thinking what is the point in spending one crore on Ileana who is totally out of form in Tollywood so he voted for Shriya.
Moreover, both Nag and Shriya have worked before so their understanding and comfort level is much easier and smooth. The filmnagar folks say Nag thought about all these parameters and then decided that Shriya is a better choice than Ileana. This is definitely a welcome break for Shriya so hope she makes the best use of it.