SK 21 which tentatively also goes by Maaveeran is actor Sivakarthikeyan's upcoming movie with Kamal Haasan's production banner Raaj Kamal Films International (RKFI). SK 21 is a big budget action drama with Sivakarthikeyan playing an army officer and initially composer Harris Jayaraj was in talks for the music of the film.

However latest buzz suggests Anirudh had grabbed the project. While an official announcement on the same awaits, it is worth mentioning here that Anirudh recently delivered a sensational hit with RKFI titled Vikram. Udhayanidhi Stalin's Red Giant Movies and stunt masters Anbariv are other collaborators form Vikram who are on-board SK 21.

Maaveeran aka SK 21 is written and directed by Rajkumar Periasamy of Rangoon (2019) fame and has Sai Pallavi playing female lead. The movie is yet to go on floors but even at this stage, its digital and satellite rights are said to be with Disney Plus Hotstar OTT platform and Star Network TV channel respectively.