On the sets Pia was seen building a rapport with the other actors - Tusshar Kapoor and Shreyas Talpade and director Sagar Bellary - but she was not so friendly with Minissha.
However, things changed when Minissha helped Pia in delivering a scene.
"Pia was extremely tense about one particular scene in the film, which after numerable re-takes was not okayed by the director.
Sensing her nervousness, Minissha helped Pia out. Minissha then rehearsed the scene thoroughly with Pia, contributing to certain nuances which Pia eventually incorporated in the scene, " a source from the unit told.
"Post this, Minissha would often get food from home to share with Pia which they would eat in each other's vanity vans, " added the source.
"Hum Tum Shabana", a romantic comedy, is releasing Sep 23.