Superstar Mohanlal will once again join director Rajiv Nath for his new movie after 'Pakal Nakshatrangal'. This new project titled 'Onnaam Sir' will be based on a short story by Karoor in the title 'Pothychoru'. K B Venu will script the project for the screen version.

Mohanlal will appear as a school teacher in this movie which is to be produced by Chaaya films.

'Onnam Sir' is a term 'used predominantly by school students, for the title of school principal. The shoot for this low budget flick is expected to kick off by the second week of this September.