Marathi blockbuster "Sairat", a doomed love story, is all set to be remade in four southern languages. The remake rights have been acquired by popular producer Rockline Venkatesh."Venkatesh will jointly produce the southern remakes with the producers of the original. The casting process will begin in a few weeks and the makers plan to go on the floors in August," a source close to Venkatesh told IANS.Directed by National Award-winning filmmaker Nagaraj Manjule, "Sairat" is said to be one of the highest grossing films in Marathi industry.The film's lead pair Rinku Rajguru and Akash Thosar won over audiences and critics alike with their performances.