Giving details on the "spectacular" opening ceremony, Kalmadi told a press conference that "Prince Diana" attended the function where he was to say "Prince Charles".
Princess Diana, who died in an accident in 1997, and Prince Charles had a divorce.
At the opening ceremony, Kalmadi had addressed former President A P J Abdul Kalam as Abdul Kalam Azad. Abul Kalam Azad was a freedom fighter.
Kalmadi said the opening ceremony was watched in all the 71 Commonwealth countries. "Networks in the United States also showed the opening ceremony," he said.