"She was extremely punctual and professional. We were all surprised that she maintained professional attitude on sets throughout the course of the shoot," Reddy told IANS.
Sunny plays a cameo of a school teacher in the film, which is the official remake of Tamil hit "Varutha Padatha Valibar Sangam".
While Sunny will be essaying her role in a traditional avatar, the makers have, however, included a special song featuring the Indo-Canadian actress.
Paired with actor Manchu Manoj, "Current Theega" also stars Jagapathi Babu and Rakul Preet Singh in important roles.
The film is slated for Oct 31 release.