We all know that Sivakarthikeyan started the new project 'SK21' under Ulaganayagan Kamal Haasan's production banner Raaj Kamal Films International. The latest reports suggest that Kamal Haasan's deadly villain is likely to lock horns with SK in the upcoming movie.

Sivakarthikeyan and Sai Pallavi are headlining the lead role in director Rajkumar Periasamy's 'SK21' with music scored by GV Prakash. Now, Indiaglitz has exclusively learnt that actor Rahul Bose will be seen as the antagonist in this biggie. He is known for playing the deadly villain Omar, an Afghanistan-based terrorist in Kamal Haasan's blockbuster spy thriller 'Vishwaroopam'.

'SK21' is said to be an intense and emotional patriotic drama with SK playing an army officer. He recently underwent special training and beefed up his physique for this role. The makers are currently shooting for the film in Kashmir and this schedule would go on for nearly two months. Some photos and videos of the star cast from Kashmir are doing rounds on social media.