Composer GV Prakash has been brought on-board actor Sivakarthiekyan's 21st film - SK 21 (tentative title) as reported previously. SK 21 is produced by Kamal Haasan's Raaj Kamal Films International (RKFI) and Sony Pictures International Production, is written and directed by Rajkumar Periyasamy of Rangoon (2017) fame, and also stars Sai Pallavi in the lead. 

SK 21 is touted to be a movie based on true events, with Sivakarthikeyan playing an army officer in it. The film is also said to be high on patriotism, and is RKFI's 51st production. 

A superb script from director @Rajkumar_KP … waiting for this beauty to translate soon . This boy is going to make it big … 🔥🔥 … thanks #Mahendran sir pic.twitter.com/80GjckTJJ4

— G.V.Prakash Kumar (@gvprakash) May 3, 2023

Welcome onboard @gvprakash for mission #SK21#Ulaganayagan #KamalHaasan #Sivakarthikeyan #SK21JoiningForces #RKFIProductionNo_51
@ikamalhaasan @Siva_Kartikeyan #Mahendran @Rajkumar_KP @gvprakash @Sai_Pallavi92 @RKFI @ladasingh pic.twitter.com/FcXKff98jS

— Raaj Kamal Films International (@RKFI) May 3, 2023