The trio will soon release the first look of the film.
"#KapoorAndSons wrapped up....And coming soon @aliaa08 @_fawadakhan_ @shakunbatra @karanjohar," Sidharth, 30, posted on Twitter.
The 22-year-old "Highway" actress also tweeted about the upcoming first look.
"Coming soon @s1dharthm ifawadkhan #kapoorandsonssince 1921," she wrote.
Produced by Karan Johar, the romantic comedy drama is Alia and Sidharth's second film together post their debut movie "Student of the Year". Both the actors are working with the Pakistani hearthrob for the first time.
The film will hit the theaters on March 18, 2016.