Here`s an exciting development on R.Balki`s much talked project Shamitabh`. Buzz is that ace filmmaker Mahesh Bhatt has got on board of the film`s cast. That means he joins the lead actors including Amitabh Bachchan, Dhanush and Akshara Haasan.

However, it said to be a special appearance, where Bhatt will feature alongside Dhanush in a Red Carpet Event. According to source, they shot the sequence within four hours.

Bhatt was impressed with Balki`s team for their organised work and also praised Dhanush for his humble personality

The filmmaker, who did his acting debut in Mukul Misra's Siddharth`, stated in an interview that he is not comfortable facing the camera since he finds memorizing lengthy dialogues difficult.