The release date of Saguni, the much-awaited political thriller of Karthi, has been postponed to June post producers decision to replace main villain Salim Ghouse with Prakash Raj as the scenes with the former failed to impress them. The action-packed movie ofdirector Sankar Dayal was earlier scheduled for release in April, the Tamil New Year. According to reports, after seeing the scenes featuring Salim, the producers at the Dream Warriors felt that it has not come out well and lack the required punch, so they decided to reshoot the scenes with Prakash Raj. A close source said that Prakash is being paid a whopping amount for his part. The film, which also stars Praneetha, Santhanam, Radikaa Sarathkumar, Kota Srinivasa Rao, Nasser, Roja and Mumtaz in prominent roles, is the story of a street-smart rookie who ultimately becomes the Chief Minister of a state.