"It has been some time since I have been in front of camera and now I am dying to act, " said Pankaj who is currently busy with his directorial debut "Mausum".
Starring his son Shahid in the lead, "Mausam" is an out-and-out romantic film and the writer-actor-director says audience will see a new side of Shahid in it.
"Shahid has proven himself in the past with his acting and now the audience will get to see a new dimension of Shahid's acting in the movie, " he said.
Pankaj was in the capital Saturday with wife Supriya and son Shahid to attend an event for special children, organised by Umeed, a vocational training centre run by Air force Wives Welfare Association.
"My father always complains that I am keeping him away from acting which he enjoys the most, " said Shahid.
Shahid, who was appreciated for his performance in "Kaminey" and recently-released "Badmaash Company", will be seen playing an Air Force officer in his father's dream project.
Asked how it feels to work with his dad, the actor said: "I am confident that this will be the toughest job of my career. And it will also be a learning experience for me - it's like learning acting all again. I will try to deliver at least five percent of what I see my dad doing on screen, " He added.