Ranbir Kapoor’s chubby avatar for Sanjay Dutt’s biopic was recently leaked, and even his public appearances are giving the audiences a sneak peek of his looks. To curb this, Ranbir Kapoor has apparently been instructed to keep a low profile as part of the strict guidelines, and the same is doled out for the Dutt biopic team as well. The crew of the Sanjay Dutt biopic has been warned to stay mum about the Bollywood film and Urmila Matondkar, who plays Dutt’s mother, late actress Nargis Dutt, has also been requested to stay away from the media glare, suggest reports. Director Rajkumar Hirani is keen to surprise the audiences with his handiwork, especially of the Ranbir Kapoor looks, and wants to take every precaution possible to guard the much awaited film from being leaked.