Great Grand Mastis first look is out and the Riteish Deshmukh, Aftab Shivdasani, Vivek Oberoi starrer is all set to triple the fun. Riteish took to his Twitter to launch the first look of the film. He captioned the image as: This time MASTI becomes GREATER and GRANDER! Let the fun begin. First look GreatGrandMasti.