The screening was held Friday.
Asked for his reactions on the comedy film, John said: "The movie was good. Genuinely I love comedies, I enjoyed the film so much. Ajay (Devgn) is brilliant, Abhishek is just outstanding and I am so happy seeing him in the film because he really made me laugh."
Abhishek indulged in some 'dostana' with John.
"He (John) is biased about me. He is my jiggly-poo right... and so I am biased towards him as well. I am very happy he saw the film, " said Abhishek.
The duo are excited to be seen together once again in the sequel to their 2008-hit "Dostana".
"We are waiting for (writer-director) Tarun Mansukhani to finish the script. We will go and ask him about it and when can we start shooting for it, " said Abhishek.
"But we are excited, the boys will be back, " added John.
"Dostana 2" will see Abhishek and John reprise their roles while Katrina Kaif replaces Priyanka Chopra as the female lead.