India, May 14 -- Witnesses in the sex trafficking case of American rapper Sean "Diddy" Combs began testifying this week at a district court in New York, in the courtroom of US district judge Arun Subramanian.

The star witness in the case is Combs' ex-girlfriend and singer Cassie, who accused "Diddy" of physical assault and control over every aspect of her life. She also accused the rapper of giving her drugs and forcing multiple sexual partners on her, whom she termed as "freak offs."

Charges against Combs include running an empire of exploitation using his fame and money. He also coerced women into abusive sex parties and silenced them with blackmail and violence, including kidnapping, arson and beatings.

Assistant U.S. Attorney Emily...