<p> Director Selvaraghavan&#39;s next film with Santhanam went on floors in Chennai recently. The latest to join the cast list is Marathi actress Aaditi Pohankar, who will be playing Santhanam&#39;s leading lady. Music director Yuvanshankar Raja has already revealed that the project will be on the lines of 7G Rainbow Colony. Santhanam is also likely to undergo a complete image makeover for this project.</p>