The presser was called to announce that the film has been cleared by the IAF and Censor Board, but its release date has been pushed back by a week; it will now release in theaters worldwide on September 23.
Sonam, 26, wore a pencil skirt featuring black panels on the sides. Her loose fit cap sleeve top featured zipper detail on shoulders, bateau neckline and white band on hem.
She accessorized with black Jimmy Choo pointy pumps, a classic black Chanel sling bag, a gold Bvlgari serpent watch and a statement necklace from Chanel.
Sonam was at the event with her co-star Shahid Kapoor, his father and Mausam director Pankaj Kapoor, and Shahid's step mom and Mausam co-star Supriya Pathak.
The Mausam team turned up color co-ordinated; Shahid looked dapper in all black, in harmony with Sonam's dress, while the senior Kapoor couple was dressed in matching blue colors.
It was a delight to watch Sonam and Shahid at the presser, both in perfectly coiffed retro hairstyles.
Sonam's stylist Namrata Soni explains Sonam's hairdo:
"For Sonam's hair we used heated rollers to add some texture to the hair. Then made a quiff and swept the rest of the hair into a side ponytail which showcases the beautiful waves, giving a vintage look."
Sonam rocked candy pink pout, smoky eyes and coral blush.
The presser followed a Mausam screening for the IAF earlier in the day to get their approval.
