Kamal Haasan's Raaj Kamal Films International (RKFI) is producing actor Sivakarthikeyan's upcoming movie, written and directed by Rangoon (2017) director Rajkumar Periasamy. The film tentatively goes by the title SK 21 and shooting for the movie is currently going on in Kashmir, India. 

Hindi actor Rahul Bose who famously played villain in another RKFI production - Vishwaroopam (2013) and Vishwaroopam 2 (2018), has now joined SK 21. Rahul Bose plays villain in SK 21 as well, and recently he joined Sivakarthikeyan and Sai Pallavi in their two month long Kashmir schedule. 

.#RahulBose Vishwaroopam fame Actor Plays a Villain Role in #SK21 🤩🔥💥💯@Siva_Kartikeyan | @Rajkumar_KP@RKFI | #ActorSKNews | #Sivakarthikeyan pic.twitter.com/x1fVSbB2WE

— Actor Sivakarthikeyan News (@ActorSK_News) July 4, 2023

SK 21 is touted to be a patriotic film with Sivakarthikeyan playing an army officer. The movie jointly produced by Sony Pictures International Production and has GV Prakash for music.