Here is the making video of Dhanush and Mari Selvaraj's 'Karnan'

Tamil actor Dhanush turned 37 on Tuesday. As wishes poured in from the film and fan fraternity, makers of his upcoming film 'Karnan', released a making video of the film, commemorating his birthday.
Produced by Kalaippuli S Thanu and directed by 'Pariyerum Perumal' fame Mari Selvaraj, 'Karnan' marks the first collaboration between Dhanush and Mari. The 3 minute video takes us through story board and set discussions to the making of the set by a rigorous team.Mari Selvaraj and Kalaippuli Thanu are seen in discussion in a few shots in the making video.
The film's intriguing title look, too, was released earlier in the day by Mari. The film has music by Santhosh Narayanan.