Veteran filmmaker Singeetham Srinivasa Rao, who is planning to make a biopic on well-known Indian biochemist Yellapragada Subbarao, says the project is still in the scripting phase."I'm busy working on the script and the whole process might take a few more months. As a filmmaker, I feel this is a very inspiring story to tell. Subbarao's contribution to the field of biochemistry is immense, and everybody deserves to know his story," Srinivasa Rao told IANS.Asked if he has any actor in mind for the title role, he said: "It's too early to even discuss about it. It is only after I lock my script, will I think of approaching any actor.a Known for helming several memorable classics such as "Pushpak", "Michael Madana Kama Rajan" and "Aditya 369", he hopes to take this project on floors next year.