Transforming physically for a film can be an uphill task. Vivek Oberoi is required to attain a lean physique for the role of the antagonist in the Malayalam film, Kaduva. It is heard that the actor has roped in celebrity fitness trainer Rahul Bhatt to help him achieve the goal.

Bhatt — who had closely worked with Aamir Khan to help him sport two distinct looks in Dangal (2016) — has apparently put Oberoi on a new fitness regimen, coupling it with intermittent fasting. “Rahul makes Vivek work out thrice a day, which are done in short bursts and minus free weights. He doesn’t want the actor to achieve a cosmetic alteration, and is instead focusing on making him fighting fit. The diet involves 20 hours of intermittent fasting, while the actor simultaneously shoots for the film. Rahul is ensuring that Vivek’s BMR [basal metabolic rate] is consistent. The idea is to get rid of body fat and develop muscle strength, while keeping a check that the metabolism doesn’t slow down,” says a source close to the actor.

Bhatt has travelled with Oberoi to Kerala where the unit is filming the Prithviraj Sukumaran-starrer.