Nayanthara pens emotional note after 'Godfather's' success, says 'it was a privilege to share the screen with Chiranjeevi garu'

Actress Nayanthara, who plays a pivotal role in director Mohan Raja`s superhit Telugu film, `Godfather`, has called Telugu superstar Chiranjeevi, who plays the lead in the film, "a gem of a person and a powerhouse performer".