"Anxiously looking forward to be back in front of the cameras tomorrow... ahh! nerves, uncertainty, fear of being tested, incapability, " Amitabh wrote on microblogging site Twitter.
The 68-year-old, who has just finished shooting for a cameo in Ram Gopal Varma's "Department", says he is going through various scripts.
"Yes there are scripts to read and decide... but decisions too are such an encumbrance... would be such a joy if someone did it for you, " he posted.