Sivakarthikeyan delivered yet another box office success 'Maaveeran' with an experimental story line. The film directed by Madonne Ashwin had Vijay Sethupathi's voice with Aditi Shankar. Yogi Babu and Mysskin in important characters.

Sivakarthikeyan is currently in Kashmir for a long hectic shooting schedule of 'SK 21'. In the past few months he has been seen with a cap over his head and definately gave indications of beefing up his body.

Now a pic of a shirtless Sivakarthikeyan has gone viral on the internet showing him with a perfect six pack that has surprised netizens. The almost shocking thing is that even in 'Maaveeran' due to the demands of the story he looks quite lean to nail his cowardly character. Fans are wondering how the 38 year old star managed a six pack in such a short time.

The first look or even a glimpse video of 'SK 21' is expected on August 15th as the subject is about patriotism in an army background. The film produced by Kamal Haasan is directed by Rajkumar Periyasamy with G.V. Prakash Kumar scoring the music. Sai Pallavi is pairing up with Sivakarthikeyan for the first time in her career.