Chandran lies to his boss that his mother is unwell to get a leave but gets caught. In order to save his job, he is forced to pretend to his boss that he has a good-for-nothing twin brother.
Unfortunately the movie Thillu Mullu is not yet available on HBO Max.
| Directing | K. Balachander | Director |
| Production | J Duraisamy | Producer |
| Production | V. Govindarajan | Producer |
| Editing | N. R. Kittu | Editor |
| Writing | Visu | Dialogue |
| Writing | Sailesh Dey | Original Story |
| Writing | Sachin Bhowmick | Original Story |
| Writing | Visu | Screenplay |
| Sound | M. S. Viswanathan | Original Music Composer |
| Camera | B. S. Lokanath | Director of Photography |
