Actors Sivakarthikeyan and Samantha Ruth Prabhu are all set to team up for the first time in an upcoming yet-untitled Ponram Tamil directorial."Welcome on board Samantha Prabhu for our production number 4 with Siva Karthikeyan," read a post on the official Twitter handle of the makers, 24 AM Studios.The project marks the third collaboration of Sivakarthikeyan and Ponram after "Varuthapadatha Valibar Sangam" and "Rajini Murugan".Slated to go on the floors next year around the Sankranti festival, the film will hit the screens during Diwali 2017.Before commencing Ponram's film, Sivakarthikeyan will complete work on his next yet-untitled project with director Mohan Raja.Sivakarthikeyan also awaits the release of Tamil romantic-comedy "Remo".