The 45-year-old actor, who plays Sharif Nazir in the long-running soap, was dismissed after the Sunday Mirror informed the ITV network bosses about his racist tweets.
Mirror published a screenshot of the alleged tweets from the actor's account, attacking India over Kashmir and calling for Pakistani actors to stop working in the country.
The paper also quoted an official statement from ITV.
"We are deeply shocked by the entirely unacceptable, racially offensive comments made on Twitter by Marc Anwar.