The Karan Johar-produced movie has been directed by Shaad Ali of "Bunty and Babli" fame.
Sharing a photo from the film's set, Shraddha tweeted, "#OKJAANUWRAP! It's been a blast with this crazy gang!!! Going to miss it too much!!!"
The picture shows the lead actors smiling away as they pose with the film's crew.
The movie is a remake of filmmaker Mani Ratnam's Tamil romantic drama "O Kadhal Kanmani", which starred Dulquer Salmaan and Nithya Menen in the lead roles.
Gulzar has written the film's dialogues as well as the lyrics while Oscar-winner AR Rahman has composed its music.
It marks Shraddha, 27, and 30-year-old Aditya's reunion after their 2013 superhit love story "Aashiqui 2", which catapulted the actors to new heights of fame.
"OK Jaanu" will hit theatres on January 13, 2017.