Rajkummar Rao puts in every effort to perfect his onscreen role and his preparations for ‘Stree’ were nothing less. The actor, who plays a tailor in the film, underwent a month long training in the different techniques of tailoring. “I didn’t want to use a body double, so I bought myself a sewing machine and hired a tailor to teach me the nuances. I took a couple of weeks off from other projects to prepare for ‘Stree’,” says Rajkummar, who will romance Shraddha Kapoor in the film. ‘Stree’ is a horror comedy directed by Amar Kaushik and is set to release on August 31.