The musical drama is a sequel to the 2008 film of the same name. The film arrived in theatres on November 11, but failed to click with the audience.
When asked if he is disheartened with the response to "Rock On 2", Farhan said, "We will talk about it some other time."
Also starring Shraddha Kapoor, Arjun Rampal, Purab Kohli, Shashank Arora ('Titli' fame) and Prachi Desai, the film was helmed by debutant Shujat Saudagar.
The 42-year-old actor-filmmaker will be seen next in "Daddy" as underworld don Dawood Ibrahim alongside Arjun Rampal.