Complex sentence: When an assistant director from Kranthi Madhav's team approached for Malli Malli Idi Rani Roju Movie, she had shown him the short film in which she acted, he was then convinced that she would be able to pull off the role of heroine's friend.
Split into simpler sentences: When an assistant director from Kranthi Madhav's team approached her for "Malli Malli Idi Rani Roju" movie, she showed him the short film in which she acted. He was then convinced that she would be able to pull off the role of heroine's friend.