Sivakarthikeyan is busy with the filming of his upcoming films: 'Amaran' and 'SK23'. Ace director AR Murugadoss is helming this mass entertainer featuring SK and Rukmini Vasanth in the lead roles. If the reports are to be believed, a renowned Malayalam actor is joining this film's star cast.

Sources tell us that actor Biju Menon is the latest addition to play a pivotal role in 'SK23'. He is known for his roles in Tamil movies like 'Majaa', 'Thambi', 'Pazhani', 'Porkalam' and 'Arasangam'. This film will mark his re-entry to Kollywood. We have to wait for an official confirmation regarding this. 'Thuppakki' villain Vidyut Jammwal is said to be a part of this movie already.

'SK23' produced by Sri Lakshmi Movies has music composed by Anirudh Ravichander. We hear that this film is being made at a budget of 150 crores. The team is planning to release the movie later this year. Meanwhile, SK's 'Amaran' is left with just 20 days of shooting and gearing up for a September release.