The lyric video of 'Thalai Viduthalai' gave a sneak peak of the phenomenal physical transformation of Ajith Kumar for his upcoming film 'Vivegam'. Not only Ajith fans but also general movie buffs and Vijay fans have been admiring the Ajith's physique and his hardwork and commitment to bring it.

In his first ever interview about 'Vivegam', director Siva who has completed working in three films back to back with Thala Ajith reveals why and how such a physique was brought forth by 46 year old star and what all went into it

"Perseverance is his main key. While discussing the story both of us decided at a same point that he should be very fit. Because the film has episodes that demand his fitness. There are a lot of tiring, demanding and spine-thrilling episodes in the film. So sir had decided that he should be like that. His conviction to deliver is the main reason for his transformation like this. It is tougher for him than others to be fit. Everyone knows that he has undergone a lot of surgeries. Even while shooting 'Aauma Doluma' song for 'Vedalam' he sustained a knee injury and underwent a surgery. He recovered from the surgery, he went to gym, employed a dedicated trainer for that, spent four hours in the gym every day and came back with a physique required for an International agent character in a spy thriller. Today he looks damn good and very, very fit."

'Vivegam' is scheduled to hit the screens on August 10, 2017.