Suriya's Singam 3, the third offing to the Singam sequel, is reportedly on its pre-production stage. Apart from its predecessors, Shruti Haasan will be the new entrant to the star cast. It is heard that director Hari is planning to make the film on a big budget by roping in few Hollywood technicians. The latest buzz is that Suriya is likely to co-produce the film along with K.E. Gnanavel Raja’s Studio Green and S.R. Prabhu's Potential Studios.