It has been widely reported that Southern beauty Nayanthara would star in the South remake of the Vidya Balan-starrer ‘Dirty Picture’. Sources say that the sexy siren has demanded a whopping price since the role in the bi-lingual film, requires flaunting curves, showcasing glamour and enacting in steamy scenes. Also, the leading lady has to put on 12 kgs – like Vidya Balan did in the original version.Reports say that producer Ekta Kapoor has agreed to Nayanthara’s demands since she’s popular in both languages (Tamil and Telugu) and can be a safe bet for the makers. Apart from Nayanathara, Anushka and few other names have been doing rounds as the contenders for Vidya Balan’s National Award-winning role based on Silk Smitha in the “Dirty Picture”. However, none of the names have been confirmed.