After the huge success of his directorial debut Taare Zameen [Images] Par, Aamir Khan [Images] has moved on to his next film, Ghajini. The shooting will start on January 22.

The film, directed by A R Murugadoss, stars Tamil actress Asin and Nishabd [Images]'s Jiah Khan. Aamir had taken a break from the Ghajini shooting to complete Taare Zameen Par.

On his blog, the actor said the past few months have been very busy for him.

'It was exciting, nerve racking, exhausting, rejuvenating, draining and enriching. I feel I was stuffed into a washing machine which didn't have an off button,' Aamir writes.

He added that he has finally given up smoking, admitting that he was delayed in kicking the habit, as he was supposed to quit on December 31.

Ghajini is not the only thing to keep Aamir busy these days. He lists his many activities on his blog, like bringing out the Taare Zameen Par DVD, and working on the release of the next Aamir Khan production, Jaane Tu, starring his nephew Imran Khan [Images].