The film, which introduced Pakistani heartthrob Fawad Khan to Bollywood for the first time, was loosely based on the 1980 Rekha-starrer movie of the same name.
Directed by Shashanka Ghosh of "Quick Gun Murugan" fame, "Khoobsurat" was a joint venture of Walt Disney Pictures, UTV and Anil Kapoor Films.
"#Oneyearofkhoobsurat !! Miss everyone on the team.. Love you'll so so much.. Best time of my life!," Sonam posted on Twitter.
The film also starred Kirron Kher, Ratna Pathak, Cyrus Sahukar and Yashwant Singh in pivotal roles besides Sonam and Fawad.